VSLink handover for next Codex thread
Updated: 2026-06-30 around 17:41 Asia/Karachi

LATEST CHECKPOINT 2026-06-30T17:41:57+0500
- User asked: remove the `OPEN EDITORS` section from Explorer; open files should show only in tabs/file editor; clicking a tab should not move it to the end; add VS Code-style preview tabs with italic text/icon and pin-on-reclick; add loading icon while opening files.
- Current loop:
  `/Users/private/Desktop/vslink/loops/72-VSCODE-TABS-PREVIEW-LOADING-NO-OPEN-EDITORS`
- Implemented locally:
  - `standalone/webview/vscode.js.js`: removed `OPEN EDITORS` from Explorer rendering; tab activation now updates in place instead of moving the tab to the end; added preview tab state (first file click previews, second click pins, another file replaces the unpinned preview, typing pins); added short-lived suppression so stale open-editor refreshes cannot re-add a replaced preview; added loading state for file open/read.
  - `standalone/webview/vscode.css.js`: preview tabs are italic; file rows and tabs have compact opening spinners.
  - `src/server/cloudService.ts`: `open_file_in_editor` passes `preview: true` into `vscode.window.showTextDocument` when requested.
  - `standalone/webview.html`: rebuilt and trimmed generated bundle.
- Runtime:
  - Rebuilt/installed staging VSIX and relaunched VS Code in localhost mode.
  - Restarted localhost server.
  - Current local server: `http://localhost:8080/`, exec session `38393`.
  - Extension registered at server time `2026-06-30T12:41:14.652Z`.
- Verification passed:
  - `node --check standalone/webview/vscode.js.js standalone/webview/vscode.css.js`
  - `npm run compile`
  - `cd standalone && npm run build-webview`
  - focused VM harness for no `OPEN EDITORS`, preserved tab order, preview replace/pin behavior, stale refresh suppression, and loading markers
  - marker scan confirms no `OPEN EDITORS` / `No open editors` in rebuilt bundle and confirms preview/spinner markers
  - root and standalone `git diff --check`
  - `curl http://localhost:8080/health`
- No commit/push/deploy.

LATEST CHECKPOINT 2026-06-30T17:20:31+0500
- User asked: VS Code/editor tabs are open but Explorer says "No open editors"; the file tree is missing; mobile should show Explorer and file editor as separate screens with file click -> editor screen, a back button, horizontal tabs, and close icons.
- Current loop:
  `/Users/private/Desktop/vslink/loops/71-VSCODE-EXPLORER-OPEN-EDITORS-FILE-TREE-MOBILE-SPLIT`
- Implemented locally:
  - `standalone/webview/vscode.js.js`: Explorer now renders `OPEN EDITORS` plus the real workspace tree under `VSLINK`; empty `get_open_editors` responses no longer wipe app-local open tabs; added `getVSCodeOpenEditorList()` and `mergeVSCodeOpenEditors()` so top tabs and Explorer rows share the same durable source; file open switches mobile into editor mode.
  - `standalone/webview/vscode.css.js`: mobile split behavior now shows Explorer by default and editor after file open; editor tab strip has horizontal scroll and the back button is visible on mobile.
  - `standalone/webview/html.js`: added `id="vscodeWorkbench"` for mobile state toggling.
  - `src/server/cloudService.ts`: `get_open_editors` now falls back to open `vscode.workspace.textDocuments`.
  - `standalone/webview.html`: rebuilt and trimmed generated bundle.
- Runtime:
  - Rebuilt/installed staging VSIX and relaunched VS Code in localhost mode so the extension-side fallback is active.
  - Restarted localhost server after rebuilding the webview.
  - Current local server: `http://localhost:8080/`, exec session `84692`.
  - Extension registered at server time `2026-06-30T12:19:00.823Z`.
- Verification passed:
  - `node --check standalone/webview/vscode.js.js standalone/webview/vscode.css.js standalone/webview/html.js`
  - `npm run compile`
  - `cd standalone && npm run build-webview`
  - generated marker scan for `OPEN EDITORS`, `buildVSCodeFileRows(vscodeFilesTree`, `vscode-mobile-back-btn`, `vscode-mobile-editor-open`, `getVSCodeOpenEditorList`, and `mergeVSCodeOpenEditors`
  - focused VM harness for the screenshot bug: app-open tabs remain visible in Explorer even when `get_open_editors` returns an empty list
  - root and standalone `git diff --check`
  - `curl http://localhost:8080/health`
- Browser-control note: in-app browser automation timed out during reload/evaluate; source/generated checks, VM render harness, server health, and extension registration passed. No commit/push/deploy.

LATEST CHECKPOINT 2026-06-30T16:36:00+0500
- User asked: in the Git / Source Control tab, show an icon like the VS Code Source Control icon from the provided image.
- Current loop:
  `/Users/private/Desktop/vslink/loops/70-SOURCE-CONTROL-ACTIVITY-ICON-VSCODE-BRANCH`
- Implemented locally:
  - `standalone/webview/index.js`: replaced the Source Control tab GitHub logo with a VS Code-style branch/source-control SVG and renamed the class to `nav-icon-source-control`.
  - `standalone/webview/base.css.js`: updated activity-bar sizing selectors to use `.nav-icon-source-control`.
  - `standalone/webview.html`: rebuilt and trimmed generated bundle.
- Verification passed:
  - `node --check standalone/webview/index.js standalone/webview/base.css.js`
  - `cd standalone && npm run build-webview`
  - generated inline scripts parse with `new Function(...)`
  - marker scan confirms new class and no old `nav-icon-github`
  - `git -C standalone diff --check -- webview/index.js webview/base.css.js webview.html`
  - `curl http://localhost:8080/health`
  - in-app browser verification after restart: Source Control icon class `icon nav-icon-source-control`, SVG has 3 circles, old GitHub class absent, rendered size `22px` by `22px`.
- Current local server:
  - URL: `http://localhost:8080/`
  - exec session: `92661`
  - extension registered at server time `2026-06-30T11:35:32Z`.

LATEST CHECKPOINT 2026-06-30T16:31:00+0500
- User asked: make the Copilot sessions inbox look like the provided VS Code/Copilot screenshot, including the `SESSIONS` title, top-right icons, left dots, and row typography/spacing.
- Current loop:
  `/Users/private/Desktop/vslink/loops/69-COPILOT-SESSIONS-INBOX-VSCODE-SIDEBAR-LOOK`
- Implemented locally:
  - `standalone/webview/chat/state.js`: added sessions toolbar state for search/filter.
  - `standalone/webview/chat/inbox.js`: added `renderSessionsHeader()` with `SESSIONS` label and four toolbar icons: refresh, search, filter, and split/session-view; added search toggle/input, Escape handling, and filter toggle.
  - `standalone/webview/chat.css.js`: added sticky VS Code-like sessions titlebar, compact toolbar icon styling, blue filter button styling, larger 78px rows, 16px/600 titles, 14px muted meta/time, and adjusted status dots.
  - `standalone/webview.html`: rebuilt and trimmed generated bundle.
- Behavior:
  - Sessions inbox now starts with a VS Code-like `SESSIONS` titlebar.
  - Refresh icon calls existing `refreshMessages()`.
  - Search icon opens an inline sessions search field.
  - Filter icon toggles filtered sessions for active/unread/changed rows.
  - Existing diff stats, unread dots, and responding dots still render.
- Verification passed:
  - `node --check standalone/webview/chat/state.js standalone/webview/chat/inbox.js standalone/webview/chat.css.js`
  - `cd standalone && npm run build-webview`
  - generated inline scripts parse with `new Function(...)`
  - marker scan for new titlebar/buttons/search/filter
  - focused render VM harness for titlebar, 4 buttons, sample rows, and search filtering
  - `git -C standalone diff --check -- webview/chat/state.js webview/chat/inbox.js webview/chat.css.js webview.html`
  - `curl http://localhost:8080/health`
  - in-app browser verification after restart:
    - `SESSIONS` title visible;
    - 4 toolbar icons visible;
    - 12 session rows loaded;
    - row height `78px`;
    - title font `16px`/weight `600`;
    - meta font `14px`.
- Current local server:
  - URL: `http://localhost:8080/`
  - exec session: `90101`
  - extension registered at server time `2026-06-30T11:29:34Z`.

LATEST CHECKPOINT 2026-06-30T16:20:00+0500
- User asked: in Copilot tab sessions, show 3 messages/sessions at app start; after the app has started, show a loading icon and load 12 total sessions.
- Current loop:
  `/Users/private/Desktop/vslink/loops/68-COPILOT-SESSIONS-START-3-THEN-AUTO-LOAD-12`
- Implemented locally:
  - `standalone/webview/chat/state.js`: changed initial session limit to `3`, added startup target `12`, and added startup load state/generation tracking.
  - `standalone/webview/chat/inbox.js`: after first inbox render, schedules a deferred expansion to 12 sessions; skips stale/all/empty/already-loaded cases; shows `Loading 12 sessions...` while the second request is in flight.
  - `standalone/webview/chat.css.js`: added compact inline session loading spinner styling.
  - `standalone/webview.html`: rebuilt and trimmed generated bundle.
- Behavior:
  - First inbox payload requests `limit: 3` for faster first paint.
  - Immediately after first render, the sessions footer shows a spinner and requests `limit: 12`.
  - Once loaded, the footer returns to normal count/buttons, e.g. `Showing 12 of N sessions`.
- Verification passed:
  - `node --check standalone/webview/chat/state.js standalone/webview/chat/inbox.js standalone/webview/chat.css.js`
  - `cd standalone && npm run build-webview`
  - generated inline scripts parse with `new Function(...)`
  - marker scan for limit `3`, target `12`, startup scheduler, and spinner text
  - focused VM harness confirmed first payload `limit: 3`, deferred payload `limit: 12`, loading footer, and final `Showing 12 of 20 sessions`
  - in-app browser verification after restart: Copilot tab active, `12` session rows, footer `Showing 12 of 189 sessions`
  - `git -C standalone diff --check -- webview/chat/state.js webview/chat/inbox.js webview/chat.css.js webview.html`
  - `curl http://localhost:8080/health`
- Current local server:
  - URL: `http://localhost:8080/`
  - exec session: `45170`
  - extension registered at server time `2026-06-30T11:19:15Z`.

LATEST CHECKPOINT 2026-06-30T16:12:00+0500
- User asked: Explorer should only show files currently opened in the VS Code editor; add close icons; opening/closing files should sync with VS Code editor state.
- Current loop:
  `/Users/private/Desktop/vslink/loops/67-VSCODE-EXPLORER-SHOW-OPEN-EDITORS-ONLY-WITH-CLOSE-SYNC`
- Implemented locally:
  - `standalone/webview/vscode.js.js`: Explorer list now renders open-editor rows only from `get_open_editors`; empty state says `No open editors`; top editor tabs and left rows both have close buttons; closing a row/tab calls `close_editor`, refreshes open editors, and selects the next remaining editor or clears the pane.
  - `standalone/webview/vscode.css.js`: added open-editor row, close-button, dirty-dot, and tab-close styling.
  - `standalone/webview/index.js`: added `close_editor` live workspace routing and HTTP fallback.
  - `standalone/routes/api.js`: added `/editor/close-file`.
  - `src/server/cloudService.ts`: added extension-side `close_editor` command that closes the matching VS Code tab through `vscode.window.tabGroups`.
  - `standalone/webview.html`: rebuilt and trimmed generated bundle.
- Behavior:
  - Explorer root remains `VSLINK`.
  - Workspace folder/file tree is no longer shown under Explorer; only open editor files show.
  - New File still opens a file through the existing editor path, so it appears in the open-editor list.
  - Close icons exist on the open-editor list and editor tabs.
- Verification passed:
  - `node --check standalone/webview/vscode.js.js standalone/webview/vscode.css.js standalone/webview/html.js standalone/webview/index.js`
  - `npm run compile`
  - `cd standalone && npm run build-webview`
  - generated inline scripts parse with `new Function(...)`
  - marker scan for open-editor rows, close icons, `close_editor`, and `No open editors`
  - `git -C standalone diff --check`
  - root `git diff --check -- src/server/cloudService.ts HANDOVER.txt loops/loop_debug.txt`
  - `curl http://localhost:8080/health`
  - in-app browser DOM smoke check:
    - root row count `1`;
    - folder rows except root `0`;
    - empty text `No open editors`;
    - current state had `0` open-editor rows.
- Not destructively tested:
  - Did not close an existing user editor tab during verification.
- Runtime caveat:
  - The `close_editor` command is compiled, but if the current VS Code extension host has not reloaded since this change, the close button may need an extension reload before the new command is live.
- Current local server:
  - URL: `http://localhost:8080/`
  - exec session: `58124`
  - extension registered at server time `2026-06-30T11:06:27Z`.

LATEST CHECKPOINT 2026-06-30T15:57:00+0500
- User asked: improve the VS Code Explorer view to match the screenshot:
  - top repo name like `VSLINK`;
  - working top-right Explorer icons;
  - remove yellow folder text;
  - fix padding;
  - add loading sign when loading folder files;
  - use file/document icon instead of menu icon;
  - make parent folder rows sticky while scrolling.
- Current loop:
  `/Users/private/Desktop/vslink/loops/66-VSCODE-EXPLORER-ROOT-ACTIONS-PADDING-STICKY-FOLDERS-AND-FILE-ICONS`
- Implemented locally:
  - `standalone/webview/html.js`: removed the old visible `EXPLORER` heading row from the VS Code tab.
  - `standalone/webview/vscode.js.js`: added sticky root repo row, New File/New Folder/Refresh/Collapse All actions, focused-folder target tracking, collapse-all behavior, folder loading spinner markup, and document SVG fallback file icon.
  - `standalone/webview/vscode.css.js`: changed folder text from yellow to grey, tightened row indentation/padding, added sticky folder row CSS, action icon styling, folder spinner animation, and mobile/grid width constraints so actions stay visible.
  - `standalone/webview/index.js`: added `create_folder` live/fallback routing.
  - `standalone/routes/api.js`: added `/folder/create`.
  - `src/server/cloudService.ts`: added safe workspace-scoped `create_folder`.
  - `standalone/webview.html`: rebuilt and trimmed generated bundle.
- Behavior:
  - Explorer now starts with `VSLINK` root row and four visible action icons.
  - New File uses existing `write_file`.
  - New Folder tries compiled `create_folder`; if the running extension host has not reloaded yet, it falls back quickly to terminal `mkdir -p` on this local Mac flow.
  - Folder rows are sticky and grey, with compact indentation.
  - Folder loading uses a spinner.
  - Generic files use document SVG instead of the menu-looking glyph.
- Verification passed:
  - `node --check standalone/webview/vscode.js.js standalone/webview/vscode.css.js standalone/webview/html.js standalone/webview/index.js`
  - `npm run compile`
  - `cd standalone && npm run build-webview`
  - generated inline scripts parse with `new Function(...)`
  - `git -C standalone diff --check`
  - marker scan for root row/actions/spinner/create_folder and no old panel heading
  - `curl http://localhost:8080/health`
  - in-app browser DOM smoke check:
    - root row text `VSLINK`;
    - 4 action icons visible inside viewport;
    - old panel heading count 0;
    - folder color `rgb(204, 204, 204)`;
    - folder position `sticky`;
    - default file icon uses SVG.
  - in-app browser screenshot visually confirmed the Explorer root row/actions.
- Current local server:
  - URL: `http://localhost:8080/`
  - exec session: `10641`
  - extension re-registered at server time `2026-06-30T10:56:04Z`.

LATEST CHECKPOINT 2026-06-30T15:34:00+0500
- User asked: remove the fake VS Code window/title bar, show tabs for files opened in VS Code editors, and make Explorer file/folder rows and icons closer to real VS Code.
- Current loop:
  `/Users/private/Desktop/vslink/loops/65-VSCODE-EXPLORER-REMOVE-TITLEBAR-OPEN-EDITOR-TABS-AND-ICONS`
- Implemented locally:
  - `standalone/webview/html.js`: removed the fake `.vscode-titlebar` / mac-dot strip from the VS Code tab; kept Explorer + editor split and editor tabs.
  - `standalone/webview/vscode.js.js`: added VS Code-like tree rendering with folder expand/collapse, editor tabs, open-editor refresh, git decorations, and file/folder icon helpers.
  - `standalone/webview/vscode.css.js`: added VS Code-like Explorer row styling, colored file symbols, folder dirty dots, and compact editor tabs.
  - `standalone/webview/index.js`: routes `get_open_editors` through live socket/HTTP fallback and refreshes the full VS Code workbench on tab open.
  - `standalone/routes/api.js`: added `/editor/open-editors` proxy route.
  - `src/server/cloudService.ts`: added extension-side `get_open_editors` command using `vscode.window.tabGroups` and visible editors.
  - `standalone/webview.html`: rebuilt and trimmed generated bundle.
- Behavior:
  - The old desktop/window title bar is gone.
  - The editor surface now has tabs above the editor area.
  - Explorer rows use chevrons, indentation, VS Code-ish colored file symbols, folder color, and git status marks/dots.
  - Files opened from the web UI appear as tabs immediately; existing VS Code editor tabs are available once the running extension host reloads the newly compiled command.
- Verification passed:
  - `node --check standalone/webview/vscode.js.js standalone/webview/vscode.css.js standalone/webview/html.js standalone/webview/index.js`
  - `npm run compile`
  - `cd standalone && npm run build-webview`
  - generated inline scripts parse with `new Function(...)`
  - marker scan shows no `.vscode-titlebar` / `.vscode-window-dots`, and confirms editor tabs/file symbols/folder dots/`get_open_editors`
  - `git -C standalone diff --check`
  - `curl http://localhost:8080/health`
- Browser-control note:
  - In-app browser automation timed out while reloading the authenticated `/vscode` tab, so no final live screenshot pass is claimed.
- Current local server:
  - URL: `http://localhost:8080/`
  - exec session: `1630`
  - extension re-registered at server time `2026-06-30T10:29:17Z`.
- Runtime caveat:
  - The standalone server is restarted, but VS Code itself was not restarted. The new `get_open_editors` command requires a VS Code extension reload/restart before already-open VS Code editor tabs are reported live.

LATEST CHECKPOINT 2026-06-30T14:23:00+0500
- User asked: make a new Git system that looks like VS Code Source Control, with a Source Control screen and a diff panel; mobile should open screens one after another, desktop/tablet should show both panes.
- Current loop:
  `/Users/private/Desktop/vslink/loops/64-VSCODE-SOURCE-CONTROL-GIT-PANE-AND-DIFF-VIEW`
- Implemented locally:
  - `standalone/webview/html.js`: replaced Git tab shell with a Source Control pane and separate diff pane.
  - `standalone/webview/git.js.js`: rewrote Git renderer around VS Code-like repo row, branch chip, commit input, blue split Commit button, grouped file rows, status letters, mobile diff navigation, and persistent desktop/tablet diff panel.
  - `standalone/webview/git.css.js`: replaced old Git CSS with VS Code-like Source Control layout; desktop/tablet split panes, mobile stacked source/diff flow.
  - `standalone/webview/index.js`: changed Git tab tooltip/aria label to `Source Control` while keeping the existing GitHub-shaped activity icon.
  - `standalone/webview.html`: rebuilt and trimmed generated bundle.
- Behavior:
  - Git tab now shows `SOURCE CONTROL`, `CHANGES`, repo/branch row, commit box, Commit split button, grouped files, and right-side `M`/`U`/etc. status letters.
  - Selecting a file loads `get_git_diff` into the diff pane.
  - On desktop/tablet, source list and diff pane coexist.
  - On mobile, selecting a file opens the diff as the next screen with back/close.
- Verification passed:
  - `node --check webview/git.js.js webview/git.css.js webview/html.js webview/index.js`
  - `cd standalone && npm run build-webview`
  - generated marker scan for `SOURCE CONTROL`, `git-source-control`, `git-workbench`, `git-diff-surface`, `renderGitChangeSection`, `gitCommitKeydown`
  - generated inline scripts parse with `new Function(...)`
  - `git -C standalone diff --check`
  - `curl http://localhost:8080/health`
- Browser-control note:
  - In-app browser automation timed out twice while attempting a rendered DOM smoke test, so no live browser pass is claimed.
- Current local server:
  - URL: `http://localhost:8080/`
  - exec session: `84341`
  - extension re-registered at server time `2026-06-30T09:20:48Z`.

LATEST CHECKPOINT 2026-06-30T14:08:00+0500
- User asked: in Terminal, add mobile-accessible plus/minus controls to resize terminal width, and fix terminal text being too small on mobile.
- Current loop:
  `/Users/private/Desktop/vslink/loops/63-TERMINAL-MOBILE-WIDTH-CONTROLS-AND-READABLE-FONT`
- Implemented locally:
  - `standalone/webview/terminal/html.js`: added toolbar `-` and `+` width buttons plus a Fit reset button.
  - `standalone/webview/terminal/client.js`: added per-terminal manual column memory, `adjustTerminalWidth()`, `resetTerminalWidth()`, clamp limits, mobile-readable defaults, and capped mobile auto-expansion from long output.
  - `standalone/webview/terminal/styles.js`: styled the width control group for desktop/mobile.
  - `standalone/webview.html`: rebuilt and trimmed generated bundle.
- Behavior:
  - Mobile default is 72 columns with larger terminal font.
  - Desktop default is 120 columns.
  - `-` narrows columns, `+` widens columns, and each resize flows through existing `terminal_resize`.
  - Fit clears the manual width for the selected terminal and returns to responsive default.
- Verification passed:
  - `node --check standalone/webview/terminal/client.js standalone/webview/terminal/html.js standalone/webview/terminal/styles.js`
  - `cd standalone && npm run build-webview`
  - generated marker scan for `terminal-width-actions`, `adjustTerminalWidth`, `resetTerminalWidth`, `TERMINAL_MOBILE_COLS = 72`
  - generated inline scripts parse with `new Function(...)`
  - `git -C standalone diff --check`
  - `curl http://localhost:8080/health`
- Current local server:
  - URL: `http://localhost:8080/`
  - exec session: `15061`
  - started at server time `2026-06-30T09:05:30Z`.

LATEST CHECKPOINT 2026-06-30T13:55:22+0500
- User asked: if Terminal tab is opened and no terminal is open, create a terminal instead of showing the start/open terminal screen.
- Current loop:
  `/Users/private/Desktop/vslink/loops/62-TERMINAL-TAB-AUTO-CREATE-WHEN-EMPTY`
- Implemented locally:
  - `standalone/webview/terminal/client.js`: added `openTerminalTab()`, `autoCreateTerminalForOpenTab()`, and `terminalAutoCreateInFlight`.
  - `loadTerminals(options)` accepts `{ autoCreateIfEmpty: true }` for the user-opened Terminal tab path only.
  - `createNewTerminal()` now inserts the newly created terminal into the local terminal tab model immediately if the list update is delayed.
  - `standalone/webview/index.js`: `switchTab('terminal')` now calls `openTerminalTab()`; direct `/terminal` route after initial connection also calls `openTerminalTab()`.
  - Background startup/reconnect still uses plain `loadTerminals()` so terminals are not created just by app startup.
- Verification passed:
  - `node --check standalone/webview/terminal/client.js standalone/webview/index.js`
  - `cd standalone && npm run build-webview`
  - generated marker scan for `openTerminalTab`, `autoCreateTerminalForOpenTab`, `autoCreateIfEmpty`, `terminalAutoCreateInFlight`
  - generated inline scripts parse with `new Function(...)`
  - `git -C standalone diff --check`
  - `curl http://localhost:8080/health`
- Current local server:
  - URL: `http://localhost:8080/`
  - exec session: `20268`
  - extension registered locally at `2026-06-30T08:54:35Z` server time.

LATEST CHECKPOINT 2026-06-30T13:46:12+0500
- User asked to remove the VS Code/open-editor preview window strip and update the activity icons:
  - remove the preview strip/code shown in screenshot 1;
  - first tab should be Explorer/files-style instead of VS Code logo;
  - Copilot icon stays;
  - Git should use a GitHub icon;
  - remove the separate Files/folder tab/code;
  - Terminal icon should be a little bolder.
- Current loop:
  `/Users/private/Desktop/vslink/loops/61-TAB-SHELL-REMOVE-OPEN-EDITOR-PREVIEWS-AND-UPDATE-ICONS-REMOVE-VS-CODE-TAB-PREVIEW-STRIP-AND-UPDATE-ACTIVITY-ICONS`
- Implemented locally:
  - Removed the Explorer tab open-editor preview strip and browser-side open-editor preview JS/CSS.
  - Removed `get_open_editors` from standalone browser routing, standalone API route, extension cloud command handler, and local HTTP router.
  - Changed activity nav to four icon-only tabs: Explorer (`data-tab="vscode"` kept for route compatibility), Copilot, GitHub, Terminal.
  - Removed old separate Files tab from generated shell, deleted `standalone/webview/files.css.js` and `standalone/webview/files.js.js`, and removed stale `initFiles()`.
  - Old `/files` and `/folder` routes now map to Explorer/`vscode`.
  - Rebuilt and trimmed `standalone/webview.html`; localhost restarted.
- Verification passed:
  - standalone JS `node --check`;
  - `npm run compile`;
  - `cd standalone && npm run build-webview`;
  - generated marker scan for no `vscode-open-strip`, `vscodeEditorPreviews`, `get_open_editors`, `editors/open`, `initFiles`, `tab-files`, old file-preview markers;
  - `git diff --check`;
  - generated inline scripts parse with `new Function(...)`.
- Browser-control note:
  - In-app browser DOM check passed before final cleanup: four nav buttons, no Files button, zero preview strip.
  - After final restarts, browser-control timed out twice, so final verification is static/generated rather than a final live screenshot.
- Current local server:
  - URL: `http://localhost:8080/`
  - exec session: `16791`
  - command: `npm start` in `/Users/private/Desktop/vslink/standalone`

LATEST CHECKPOINT 2026-06-30T06:05:00+0500
- User asked for VS Code-like top tabs and editor preview:
  - Copilot tab should be Copilot icon only, no visible chat count.
  - Tab order should be VS Code, Copilot, Files, Git, Terminal.
  - VS Code tab should show open VS Code editor windows as scrollable preview windows and allow opening/editing/saving files.
- New loop: `/Users/private/Desktop/vslink/loops/60-VSCODE-TAB-EDITOR-PREVIEW-SHELL-VS-CODE-ICON-TAB-WITH-OPEN-EDITOR-PREVIEWS-ICON-ONLY-COPILOT-TAB-AND-VS-CODE-LIKE-NAV`
- Implemented locally:
  - `standalone/webview/index.js`: five icon-only tabs in requested order.
  - `standalone/webview/chat/inbox.js`: chat tab badge no longer mutates visible tab text; count is attribute-only.
  - `standalone/webview/html.js`, `standalone/webview/vscode.css.js`, `standalone/webview/vscode.js.js`: new VS Code tab with open-editor preview strip, Explorer, editor tabs, textarea editing, line numbers, Open/Reload/Save controls.
  - `src/server/cloudService.ts`, `src/server/httpRouter.ts`, `standalone/routes/api.js`, and `standalone/webview/index.js`: added/proxied `get_open_editors`, `open_file_in_editor`, and `write_file`.
  - Rebuilt `standalone/webview.html`, trimmed generated whitespace, restarted localhost, rebuilt/installed staging VSIX, and relaunched VS Code in localhost mode.
- Verification passed: node syntax checks, `npm run compile`, `cd standalone && npm run build-webview`, generated marker scan, root/standalone `git diff --check`, in-app browser live DOM check, and VS Code tab smoke test loading real open editors.
- Current local server URL: `http://localhost:8080/`
- Current server exec session: `90249`.
- Extension re-registered locally at server time `2026-06-30T01:03:05Z`.

READ THIS FIRST
- Workspace root: /Users/private/Desktop/vslink
- User requires txt loop discipline: before any task, read this file plus loops/loop_debug.txt and the current task STATUS.txt. After each task or meaningful checkpoint, update loop txt files.
- Do not commit, push, deploy, or install/restart VS Code unless the user asks or the loop explicitly requires it.
- Do not use DB/localStorage/review fallbacks without asking the user. The user wants missing data to fail loudly for debugging.
- Do not treat vscode-copilot-chat as the app. It is an external reference clone only: /Users/private/Desktop/vslink/vscode-copilot-chat(external git for reference only)
- The user's app is this repo's extension/server plus standalone web app in /Users/private/Desktop/vslink/standalone.
- Use apply_patch for manual edits. Avoid Python for simple read/write/edit work.

IMPORTANT URLS AND MODES
- Cloud Run staging URL: https://vs0-655025977368.europe-west1.run.app/
- Local quick-test URL: http://localhost:8080/
- Localhost quick-test must bypass Cloudflare Worker and use same-origin localhost WebSocket.
- Cloud Run staging uses the staging Cloudflare Worker.
- If standalone code changes: run `cd standalone && npm run build-webview`.
- If local standalone source changed and a local server is already running, restart the local server so Node/module cache is fresh.
- Current local server at handoff was running:
  - URL: http://localhost:8080/
  - exec session: 60039
  - command marker: `local-staging-20260629210610`
  - local run dir: `/Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T20-46-49Z-local-staging`
  - local render out: `/Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T20-46-49Z-local-staging/local-staging-webview.html`
  - CF_WORKER_URL is empty for localhost quick-test
  - Verify because this may be stale in the new thread: `curl -s http://localhost:8080/health`
- To run local staging server for user testing:
  `LOCAL_STAGING_OPEN_BROWSER=0 npm run debug:local-staging`
- To install/restart the staging extension for localhost testing after extension changes:
  `CONNECT_STAGING_EXTENSION=0 CONNECT_LOCALHOST_EXTENSION=1 FORCE_RESTART_CODE=1 npm run debug:staging:code -- <run-dir>`
- To install/restart staging extension for Cloud staging testing after extension changes, follow loops instructions and do not confuse it with localhost mode.

LATEST ACTIVE LOOP
- Latest task folder:
  /Users/private/Desktop/vslink/loops/62-TERMINAL-TAB-AUTO-CREATE-WHEN-EMPTY
- Latest status file:
  /Users/private/Desktop/vslink/loops/62-TERMINAL-TAB-AUTO-CREATE-WHEN-EMPTY/STATUS.txt

LATEST USER-VISIBLE STATE
- Temporary streaming debug code/data remains removed. Do not use the deleted stream-debug log paths from older notes.
- Latest user issue was Terminal tab showing the empty start/open panel when no terminal exists.
- Current UI should have four icon-only tabs in order: Explorer, Copilot, GitHub, Terminal.
- Copilot tab has no visible chat/session count.
- Explorer tab keeps file tree, editable editor pane, and Save, but no open-editor preview windows.
- Terminal tab should auto-create/attach a terminal when opened and none exist.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 20268
  - extension registered locally at `2026-06-30T08:54:35Z` server time.
- User should refresh the in-app browser tab before retesting so it loads the rebuilt `standalone/webview.html`.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User asked to stop guessing completion and add sharper logs before another behavioral streaming fix.
- Latest pass intentionally added diagnostics only, not a streaming lifecycle behavior change.
- New sharp diagnostics are installed:
  - server observer poll decision log: `[MSDBG:stream] export_observer_poll`;
  - browser history poll summary: `MSDBG:history_sync_result`;
  - browser monitor/adoption probe: `MSDBG:stream_monitor_result_adoption_probe`;
  - browser history visible application: `MSDBG:history_entry_apply_attempt` and `MSDBG:history_entry_applied_visible`;
  - browser background origin labels: `origin:event`, `origin:history`, `origin:demote`, `origin:history-visible-mismatch`;
  - replay guard log: `MSDBG:background_stream_remembered_terminal_ignore`.
- `/api/chat-stream/status` now includes `chatExportLastSnapshotSummary` and `activeExportObservers`; `lastSnapshot` is expected to be null before a fresh stream starts.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 94746
  - command marker: `local-staging-20260629212856`
  - local run dir: `/Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T21-28-54Z-local-staging`
  - local render out: `/Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T21-28-54Z-local-staging/local-staging-webview.html`
  - CF_WORKER_URL is empty for localhost quick-test.
  - extension re-registered locally at `2026-06-29T21:29:27Z`.
- User should refresh the in-app browser before reproducing so it loads the rebuilt bundle.
- Next debugging command after repro:
  `LOG=.debug-artifacts/2026-06-29T21-28-54Z-local-staging/local-staging-server.log; rg -n "MSDBG:send|MSDBG:command|MSDBG:stream|history_sync_result|stream_monitor_result_adoption_probe|history_entry_apply|background_stream_|stream_event_" "$LOG" | tail -n 500`
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User reproduced again after the first identity/replay fix: starting a new message while another stream was ongoing made the older stream stop showing, and the newer finished response could disappear from the chat.
- Latest diagnosed/fixed locally:
  - promoted background streams were losing `clientRequestId`, so every session switch weakened later event matching;
  - exact same-session live cache rows were either hidden too early or resurrected as duplicate rows, depending on whether durable JSONL had caught up;
  - completed live assistant content could disappear because the real session row existed before the assistant was persisted into its messages;
  - stale background/cache entries could still make a real completed session show `Responding`.
- Latest local fix:
  - `standalone/webview/chat/inbox.js` preserves `clientRequestId` when promoting a background stream and checks cached active live entries for real-session `Responding`;
  - `standalone/webview/chat/live-stream.js` suppresses duplicate live rows for real sessions, overlays cached live assistant output into the selected real session until durable history contains it, and refuses to promote/count stale background/cache streams once the real assistant is complete;
  - generated `standalone/webview.html` was rebuilt and whitespace-trimmed.
- Previous identity/replay fix remains in place:
  - `src/server/liveChatStream.ts` writes normalized `sessionId`/`clientRequestId` after spreading payload data;
  - browser routing adopts active `clientRequestId` for matching id-less events, ignores remembered terminal replays, and expires empty streams by no-visible-response timeout.
- Temporary MSDBG diagnostics are still installed intentionally for the next reproduction.
- Temporary log/removal notes:
  `/Users/private/Desktop/vslink/loops/55-FIX-SESSION-INBOX-DIFF-COLOR-AND-STALE-RESPONDING/TEMP_MSDBG_LOGS_TO_REMOVE.txt`
- Diagnostic tags to watch/remove:
  - browser/server client debug: `MSDBG`;
  - extension send path: `[MSDBG:send]`;
  - extension stream/export observer: `[MSDBG:stream]`;
  - extension command handler: `[MSDBG:command]`.
- Diagnostic files changed:
  - `standalone/webview/chat/state.js`;
  - `standalone/webview/chat/actions.js`;
  - `standalone/webview/chat/live-stream.js`;
  - `standalone/webview/chat/inbox.js`;
  - `src/server/chatService.ts`;
  - `src/server/liveChatStream.ts`;
  - `src/server/cloudService.ts`;
  - generated `standalone/webview.html`.
- Verification passed:
  - `node --check standalone/webview/chat/live-stream.js`;
  - `node --check standalone/webview/chat/inbox.js`;
  - `npm run compile`;
  - `cd standalone && npm run build-webview`;
  - focused VM harness for completed live-cache overlay, active cached `Responding`, and stale background suppression after real completion;
  - generated whitespace trim;
  - `git diff --check`;
  - `git -C standalone diff --check`;
  - localhost health.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 60039
  - command marker: `local-staging-20260629210610`
  - local run dir: `/Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T20-46-49Z-local-staging`
  - local render out: `/Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T20-46-49Z-local-staging/local-staging-webview.html`
  - CF_WORKER_URL is empty for localhost quick-test.
  - extension re-registered locally at `2026-06-29T21:06:26Z`.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User reported latest progress but multi-streaming still wrong: the latest session streamed while the first same-time session did not, and `Responding` remained after refresh even though VS Code editor chat was finished.
- Loop 55 has another follow-up fix complete locally and running on localhost.
- Latest multi-streaming/stale-responding fix made locally:
  - `standalone/webview/chat/live-stream.js` now demotes the current active stream into `backgroundStreams` before a new request overwrites visible live state, keyed by changed `clientRequestId` or changed prompt text;
  - `getLiveStatusUserIndex()` now requires `liveStreamMatchesSession()` before attaching the right-side/under-user live status, so text-only prompt matches cannot keep a stale spinner on the wrong saved session;
  - `getDisplayMessagesForSession()` now only inserts a live overlay/status when `hasActiveLiveResponse()` is true;
  - `standalone/webview/chat/inbox.js` no longer treats a durable saved user-only session with stale `status: in-progress` as `Responding` unless an actual active live response/background stream is attached;
  - selecting a session only promotes a background stream when `isLiveEntryActivelyStreaming()` says it is still truly active.
- Verification passed:
  - `node --check standalone/webview/chat/inbox.js`;
  - `node --check standalone/webview/chat/live-stream.js`;
  - focused VM harness for stale user-only rows, active background exception, and demoting an old active stream when a new send begins;
  - `cd standalone && npm run build-webview`, followed by generated whitespace trim;
  - `git diff --check`;
  - `git -C standalone diff --check`;
  - localhost health.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 34653
  - command marker: `local-staging-20260629201554`
  - local run dir: `/Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T20-15-52Z-local-staging`
  - local render out: `/Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T20-15-52Z-local-staging/local-staging-webview.html`
  - CF_WORKER_URL is empty for localhost quick-test.
  - extension registered locally at `2026-06-29T20:15:57Z`.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User reported the previous same-prompt/multi-streaming fix still showed bad state: one session appeared to be responding, another did not, and refresh still showed stale `Responding`.
- Loop 55 has another follow-up fix complete locally.
- Latest multi-streaming/stale-responding fix made locally:
  - `standalone/webview/chat/inbox.js` no longer calls `startLiveStreamMonitor('', sessionId, false)` when selecting/opening a session;
  - session open/refresh now syncs existing stream history only, instead of creating a passive in-progress overlay;
  - client-side `startLiveStreamMonitor()` still requires a prompt message or `clientRequestId`;
  - server-side passive monitors still reject requests with no `message` and no `clientRequestId`;
  - real send monitors in `src/server/chatService.ts` carry `message`, `sessionId`, and `clientRequestId`;
  - direct HTTP stream-watch in `src/server/httpRouter.ts` now forwards `clientRequestId`, matching the CloudConnector command route.
- Verification passed:
  - `node --check standalone/webview/chat/inbox.js`;
  - `node --check standalone/webview/chat/live-stream.js`;
  - `npm run compile`;
  - `cd standalone && npm run build-webview`, followed by generated whitespace trim;
  - source/bundle scan confirmed no `startLiveStreamMonitor('',` remains in `standalone/webview/chat/inbox.js` or `standalone/webview.html`;
  - identity-route harness confirmed client/server request-identity guards and `clientRequestId` forwarding;
  - `git diff --check`;
  - `git -C standalone diff --check`;
  - localhost health.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 6536
  - command marker: `local-staging-20260629191512`
  - local run dir: `/Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T19-15-10Z-local-staging`
  - local render out: `/Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T19-15-10Z-local-staging/local-staging-webview.html`
  - CF_WORKER_URL is empty for localhost quick-test.
  - final local extension restart succeeded with `CONNECT_STAGING_EXTENSION=0 CONNECT_LOCALHOST_EXTENSION=1 FORCE_RESTART_CODE=1`.
  - final extension registered locally at `2026-06-29T19:18:47Z`; subsequent server logs showed `get_chat_stream_history` polling only and no new empty `start_chat_stream_monitor`.
- One stale browser/old-extension pair emitted an empty `start_chat_stream_monitor` at `2026-06-29T19:15:22Z` before the final extension restart; after the final restart this did not repeat.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User created two sessions with the same message and reported:
  - streamed message content mixed into one session;
  - four session rows appeared instead of two;
  - completed streams still showed `Responding`.
- Loop 55 has another follow-up fix complete locally.
- Latest same-prompt streaming/session fix made locally:
  - `standalone/webview/chat/live-stream.js` now treats prompt text as a fallback only when it is unambiguous or the timestamp clearly identifies one real session;
  - if two same-prompt sessions have indistinguishable timing, the live stream remains isolated instead of being guessed into either transcript;
  - cached/background live stream rows are hidden once a real session already represents that response, so two real sessions do not become four rows;
  - active stream text no longer attaches to the wrong selected same-prompt session;
  - `standalone/webview/chat/inbox.js` suppresses stale `Responding` on real sessions that already have visible assistant content and no actual active live response;
  - the inbox can still show `Responding` for the active best timestamp-matched session while the transcript renderer stays stricter.
- Verification passed: `node --check standalone/webview/chat/live-stream.js`, `node --check standalone/webview/chat/inbox.js`, same-prompt live merge VM harness, session progress VM harness, `cd standalone && npm run build-webview`, generated whitespace trim, `git diff --check`, `git -C standalone diff --check`, localhost health.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 55162
  - command marker: VSLINK_WEBVIEW_VERSION=local-staging-20260629180336
  - local run dir: /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T18-03-34Z-local-staging
  - local render out: /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T18-03-34Z-local-staging/local-staging-webview.html
  - CF_WORKER_URL is empty for localhost quick-test
  - fresh extension registered locally at 2026-06-29T18:03:39Z
- Browser clients connected and `get_inbox` / `start_chat_stream_monitor` / `get_chat_stream_history` requests succeeded after restart.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User then reported streaming was not working at all and no chars were shown.
- Loop 55 has a follow-up fix complete locally.
- Latest streaming fix made locally:
  - `standalone/webview/chat/live-stream.js` now lets an active live response with stream/local ids but no durable session id yet attach to the currently selected real session when the outgoing prompt text matches the active request;
  - the id-bearing active-stream path now returns a positive match for the selected active response instead of falling through to saved JSONL messages, which had hidden streamed assistant chars before Copilot persisted the session update;
  - unselected sessions still reject that active live stream, preserving the multi-stream isolation work from loop 54.
- Verification passed: `node --check standalone/webview/chat/live-stream.js`, focused generated-webview VM harness for selected live prompt/text insertion and unselected-session rejection, `node --check standalone/webview/chat/inbox.js`, `node --check standalone/webview/chat.css.js`, `cd standalone && npm run build-webview`, generated whitespace trim, `git diff --check`, `git -C standalone diff --check`, localhost health.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 83618
  - command marker: VSLINK_WEBVIEW_VERSION=local-staging-20260629174900
  - local run dir: /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T17-48-58Z-local-staging
  - local render out: /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T17-48-58Z-local-staging/local-staging-webview.html
  - CF_WORKER_URL is empty for localhost quick-test
  - fresh extension registered locally at 2026-06-29T17:49:02Z
- Browser clients connected and `get_inbox` / `start_chat_stream_monitor` / `get_chat_stream_history` requests succeeded after restart.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User reported the session inbox showed `+113 -80 · Responding · 46 min ago`, where `-80` was gray and `Responding` was stale.
- Loop 55 is complete locally.
- Latest session inbox fix made locally:
  - `standalone/webview/chat.css.js` now uses `--git-added` and `--git-deleted` for session diff totals, with success/error color fallbacks;
  - `standalone/webview/chat/inbox.js` now suppresses stale `Responding` rows unless an actual live response is active or the in-progress state is still within `LIVE_SESSION_TTL_MS`;
  - a 46-minute-old `in-progress` session no longer gets the blue in-progress dot/Responding label just because durable session status still says in-progress.
- Verification passed: node checks for touched standalone modules, focused VM harness for the screenshot case and active-live exception, `cd standalone && npm run build-webview`, generated whitespace trim, `git diff --check`, `git -C standalone diff --check`, localhost health.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 37427
  - command marker: VSLINK_WEBVIEW_VERSION=local-staging-20260629172957
  - local run dir: /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T17-29-55Z-local-staging
  - local render out: /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T17-29-55Z-local-staging/local-staging-webview.html
  - CF_WORKER_URL is empty for localhost quick-test
  - fresh extension registered locally at 2026-06-29T17:29:59Z
- Browser DOM probe timed out before returning rows; server logs showed browser clients connected and `get_inbox` responses succeeded after restart.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User reported multi-streaming is broken: one response shows inside another, and messages are not reliably flagged complete.
- Loop 54 is complete locally.
- Research subagent Euclid checked Copilot/VS Code streaming behavior and wrote:
  `/Users/private/Desktop/vslink/loops/54-FIX-MULTI-STREAMING-RESPONSE-ISOLATION-AND-COMPLETION-FLAGS/COPILOT_REFERENCE_INDEX.txt`
- Implementation subagent Ohm patched the core path; main agent reviewed and added final guards.
- Latest multi-streaming fix made locally:
  - `src/server/liveChatStream.ts` now tracks Workbench export observers per stream/request instead of reusing a mutable singleton across different prompts;
  - server export polling pins to the matched request timestamp after discovery, so later Copilot responses cannot overwrite an older observer;
  - `standalone/webview/chat/live-stream.js` now keys live cache entries by stream/local/response/request ids before session/prompt;
  - terminal states are remembered per live response id and cannot be reopened by late in-progress events;
  - background completion for stream A does not replace visible in-progress stream B, and late stream A deltas do not overwrite stream A's final text.
- Verification passed: `node --check standalone/webview/chat/live-stream.js`, `npm run compile`, `cd standalone && npm run build-webview`, overlapping-stream VM harness, `git diff --check`, `git -C standalone diff --check`, localhost health.
- Staging VSIX was rebuilt/installed and VS Code relaunched in localhost mode with `CONNECT_STAGING_EXTENSION=0 CONNECT_LOCALHOST_EXTENSION=1 FORCE_RESTART_CODE=1`.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 25208
  - command marker: VSLINK_WEBVIEW_VERSION=local-staging-20260629170508
  - local run dir: /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T17-05-06Z-local-staging
  - local render out: /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T17-05-06Z-local-staging/local-staging-webview.html
  - CF_WORKER_URL is empty for localhost quick-test
  - fresh extension registered locally at 2026-06-29T17:06:27Z
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User reported three live chat UI issues: streaming accordions should not close until chat completion, `Responding` should align on the right under the user bubble, and the check/tick next to copy should only display after copy is pressed.
- Latest live-response polish made locally:
  - `renderSection()` now keeps all titled timeline accordions open while the message is incomplete; completed messages still default closed unless user-toggled;
  - `.message.user .live-stream-status` now right-aligns under the user bubble, including label/preview text;
  - copy-state CSS now uses button-scoped selectors for `.copy-state-check`, overriding the generic codicon display rule so the check icon is hidden until `data-copied="true"`.
- Verification passed: `node --check standalone/webview/chat/rendering.js`, `node --check standalone/webview/chat.css.js`, focused VM harness for two streaming sections both open vs completed sections closed, CSS marker harness, `cd standalone && npm run build-webview`, built-webview marker check, `git diff --check`, `git -C standalone diff --check`, localhost health check.
- After the restart, the localhost extension re-registered and chat model/history requests succeeded.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 85831
  - process PID: 7341 (`node server.js`)
  - command marker: VSLINK_WEBVIEW_VERSION=local-staging-20260629143529
  - local render out: /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T14-35-27Z-local-staging/local-staging-webview.html
  - CF_WORKER_URL is empty for localhost quick-test
- The in-app browser was refreshed on `http://localhost:8080/`. The selected tab still had no mounted transcript/action buttons, so browser DOM inspection could not see a live copy button or status row; verification was via deterministic harness and built markers.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User reported that clickable file links in the Copilot response/timeline were not showing correctly. Screenshot showed read rows rendering raw empty markdown links like `Read [](file:///Users/private/Desktop/vslink/wow.txt) Reading [](file:///Users/private/Desktop/vslink/wow.txt)` instead of a compact clickable file chip.
- Latest file-link rendering fix made locally:
  - `standalone/webview/chat/rendering.js` now normalizes file URI markdown links in tool rows, not just progress/markdown rows;
  - empty file link text falls back to the file basename, so `[](file:///.../wow.txt)` renders as a clickable `wow.txt` chip;
  - URL-encoded file paths are decoded before display/open path construction;
  - duplicate read details are suppressed when Copilot sends `Read <same file>` plus `Reading <same file>`, so rows render as one clean `Read [file-chip]` line instead of duplicated raw text.
- Verification passed: `node --check standalone/webview/chat/rendering.js`, focused VM render harness for `Read [](file:///...)` and duplicate `Reading [](file:///...)`, `cd standalone && npm run build-webview`, built-webview marker check, `git diff --check`, `git -C standalone diff --check`, localhost health check.
- After the restart, the localhost extension re-registered and chat model/history requests succeeded.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 27127
  - process PID: 99750 (`node server.js`)
  - command marker: VSLINK_WEBVIEW_VERSION=local-staging-20260629142835
  - local render out: /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T14-28-33Z-local-staging/local-staging-webview.html
  - CF_WORKER_URL is empty for localhost quick-test
- The in-app browser was refreshed on `http://localhost:8080/`. The root tab did not have a chat transcript mounted during DOM inspection, so the screenshot row was verified by deterministic render harness rather than live DOM.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User attached a CSS recommendation snippet and asked to apply it.
- Latest CSS recommendation pass made locally:
  - generic `.sec-body` now uses `.sec-body:not(.timeline-section-body)`, so it no longer overrides timeline body padding/hook geometry;
  - old titled section body rule is also scoped with `:not(.timeline-section-body)`;
  - thinking markdown spacing now follows the snippet: paragraph bottom spacing with last reset, list bottom spacing with `padding-left: 20px`, and no extra per-list-item margins;
  - previous hook-touch geometry is preserved (`0px` horizontal gap, `0.02px` vertical gap).
- Verification passed: `node --check standalone/webview/chat.css.js`, recommendation marker harness, source geometry harness, `cd standalone && npm run build-webview`, built-webview marker check, `git diff --check`, `git -C standalone diff --check`, localhost health check.
- After the restart, the localhost extension re-registered and chat model/history requests succeeded.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 50979
  - process PID: 84185 (`node server.js`)
  - command marker: VSLINK_WEBVIEW_VERSION=local-staging-20260629141503
  - local render out: /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T14-16-00Z-copilot-css-recommendations/local-staging-webview.html
  - CF_WORKER_URL is empty for localhost quick-test
- The in-app browser was refreshed on `http://localhost:8080/`.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User reviewed the isolated timeline page and said it looked workable, but the connector line should touch the point, then asked to implement that in the app.
- Latest app-side line fix made locally:
  - `standalone/webview/chat.css.js` single-node hook is now `width: 28px; height: 22px;`;
  - this keeps `hookRight = dotLeft` with `0px` horizontal gap and aligns `hookBottom` to the dot center within `0.02px` after accounting for `padding-top`;
  - the same height was mirrored into the isolate fixture at `/Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T11-40-00Z-timeline-css-isolation/timeline-isolate.html`;
  - rebuilt `standalone/webview.html` and stripped generated whitespace.
- Verification passed: `node --check standalone/webview/chat.css.js`, source geometry harness, `cd standalone && npm run build-webview`, built-webview marker check for `28px`/`22px`, `git diff --check`, `git -C standalone diff --check`, localhost health check.
- After the restart, the localhost extension re-registered and chat model/history requests succeeded.
- Current local server:
  - URL: http://localhost:8080/
  - exec session: 95991
  - process PID: 70544 (`node server.js`)
  - command marker: VSLINK_WEBVIEW_VERSION=local-staging-20260629140235
  - local render out: /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T14-03-00Z-copilot-hook-touch-dot-app/local-staging-webview.html
  - CF_WORKER_URL is empty for localhost quick-test
- The in-app browser was navigated from `http://127.0.0.1:8097/timeline-isolate.html` back to `http://localhost:8080/`.
- The old isolate server on `127.0.0.1:8097` was stopped; only the app server on `8080` is intentionally running.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User supplied an isolated HTML/CSS snippet diagnosing the edit row mismatch: per-file `+N -N` stats must be children of the `file-chip` button, after `.file-chip-name`, instead of siblings after the button.
- Latest edit-chip UI fix made locally:
  - `renderFileChip(path, name, line, trailingHtml)` now supports an optional trailing child HTML slot;
  - `renderEditPart()` now passes `renderDiffStats(..., 'response-edit-stats')` into `renderFileChip`, so each row renders `<button class="file-chip">...<span class="file-chip-name">...</span><span class="timeline-diff-stats response-edit-stats">...</span></button>`;
  - reference chips and inline file refs still call `renderFileChip` without trailing stats.
- Verification passed: `node --check standalone/webview/chat/rendering.js`, VM render harness confirmed both edit rows have `response-edit-stats` inside the chip and no sibling stats pattern, `cd standalone && npm run build-webview`, built-webview marker check, `git diff --check`, `git -C standalone diff --check`, localhost health check.
- Current local server run dir:
  /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T12-29-51Z-copilot-edit-chip-stats
- Current local server marker/session/PID: `local-staging-20260629122959`, exec session 16390, PID 62082.
- User's in-app browser may still be on the old fixture URL `http://127.0.0.1:8097/timeline-isolate.html`; open/refresh `http://localhost:8080/` to see the app.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User asked to isolate the HTML/CSS and check until it works instead of nudging live CSS.
- Latest fixture-driven fix made locally:
  - created an isolated timeline fixture at `/Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T11-40-00Z-timeline-css-isolation/timeline-isolate.html`;
  - compared current vs candidate geometry in DOM pixels. Current single-node deltas were hook 6px, hook-right 21px, dot 32px, text 47px from the title. Candidate deltas were hook 6px, hook-right 27px, dot 38px, text 64px from the title, matching the Copilot reference more closely;
  - ported only the single-node CSS back to app CSS: `.timeline-section-body-single { padding-left: 41px; }`, single hook `width: 21px; height: 32px`, and single-node dot `left: -30px; width/height: 7px; transform: none`;
  - multi-node sections keep the existing rail geometry.
- Verification passed: isolated fixture DOM measurement, `node --check standalone/webview/chat.css.js`, `cd standalone && npm run build-webview`, `git diff --check`, `git -C standalone diff --check`, localhost health check. The temporary fixture server on port 8097 was stopped.
- Current local server run dir:
  /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T11-44-59Z-copilot-isolated-timeline-css
- Current local server marker/session/PID: `local-staging-20260629114510`, exec session 80636, PID 57035.
- Browser-control timed out when trying to restore/navigate the in-app tab after fixture checks; if the browser is on the fixture or stale URL, manually open/refresh `http://localhost:8080/`.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User supplied another screenshot after the prior hook nudge. The one-node thinking hook had escaped too far left from the dot, creating a detached bracket.
- Latest line UI fix made locally:
  - restored the single-node hook to the normal body coordinate (`left: 2px`, `width: 15px`) while keeping the short `height: 12px`;
  - rebuilt `standalone/webview.html`, stripped generated trailing whitespace, and restarted localhost.
- Verification passed: `node --check standalone/webview/chat.css.js`, `cd standalone && npm run build-webview`, `git diff --check`, `git -C standalone diff --check`, localhost health check.
- Current local server run dir:
  /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T11-29-21Z-copilot-single-hook-align
- Current local server marker/session/PID: `local-staging-20260629112939`, exec session 95119, PID 53078.
- Browser-control reload landed on the root app without a selected timeline section, so no DOM measurement was available in that pass.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User supplied one more line-UI screenshot after the single-node rail fix. VSLink was closer, but the short hook still started too near the dot and extended downward enough to look like a dangling underline beneath the first thinking line.
- Latest hook nudge fixed locally:
  - moved the single-node rounded hook left of the dot and shortened it (`left: -24px`, `height: 12px`) so it reads like Copilot's short bracket instead of a line under text;
  - stripped generated trailing whitespace from `standalone/webview.html` after rebuilding.
- Verification passed: `node --check standalone/webview/chat.css.js`, `cd standalone && npm run build-webview`, `git diff --check`, `git -C standalone diff --check`, localhost health check.
- Current local server run dir:
  /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T10-53-30Z-copilot-line-hook-nudge
- Current local server marker/PID: `local-staging-20260629105355`, PID 47248.
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User supplied a line-UI comparison for the first expanded thinking section. VSLink drew the vertical timeline line through the whole paragraph/list; Copilot target only showed a short rounded hook into the first dot.
- Follow-up fixed locally:
  - renderer marks expanded bodies/rails as single-item when the section body has exactly one visible timeline node;
  - CSS hides the long rail for single-item sections and keeps only a short, lighter rounded hook;
  - multi-node read/edit sections keep their normal vertical connecting rail.
- Verification passed: JS syntax checks for renderer/CSS, targeted render harness for single-node vs multi-node rail classes, `cd standalone && npm run build-webview`, `git diff --check`, localhost restart and health check.
- Current local server run dir:
  /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T10-45-41Z-copilot-line-ui-match
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User supplied a tighter edit-section comparison: VSLink showed `Updated wow.txt` with one `Edited wow.txt` row and no stats; Copilot target shows `Updated wow.txt +6 -5`, one edit group with `wow.txt +2 -1`, `poem-3.txt +4 -4`, and the following thinking line.
- Follow-up fixed locally:
  - VS Code nested edit arrays (`[[edit], []]`) are flattened in both JSONL and live stream parsing, so line additions/deletions are counted;
  - URI-only `codeblockUri` edit parts are skipped, preventing premature skinny edit rows with no stats;
  - visually-empty code-fence text is skipped before timeline sectioning, so multiple `textEditGroup` entries remain grouped;
  - consecutive edit items render as one edit body with one pencil icon and spacer rows;
  - edit title styling is split into bright verb plus muted filename.
- Verification passed: JS syntax checks, targeted renderer harness for the exact `Updated wow.txt +6 -5` / two-row edit block, `npm run compile`, `cd standalone && npm run build-webview`, `git diff --check`, staging VSIX build/install, VS Code relaunched in localhost mode, localhost health check.
- Current local server run dir:
  /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T10-36-52Z-copilot-edit-ui-match
- Current staging extension run dir:
  /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T10-36-52Z-copilot-edit-ui-match
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User supplied follow-up screenshots comparing VSLink's current accordion/timeline UI to VS Code Copilot Chat. The remaining issues were extra rails/dots, too much padding, collapsed chevrons showing too strongly, edit sections split by file, raw internal tool rows, and the final section title showing `Thinking`.
- Follow-up fixed locally:
  - visible markdown after a titled thinking/tool section now becomes a normal top-level response line;
  - hidden/internal tools (`presentation: hidden`, `copilot_multiReplaceString`, `task_complete`) are not rendered as visible rows;
  - consecutive edit timeline items group into one section titled from the first edited file, with aggregate `+added/-removed` stats;
  - final completion sections infer Copilot-style titles like `Completed user's request for similar changes`;
  - legacy `.section--titled .sec-body` CSS no longer adds a second timeline border to the new timeline body;
  - timeline padding, line weight, node dots, and collapsed chevrons were tightened to better match VS Code.
- Verification passed: `node --check` for standalone renderer/CSS modules, targeted Node renderer harness, `npm run compile`, `cd standalone && npm run build-webview`, `git diff --check`, staging VSIX build/install, VS Code relaunched in localhost mode, localhost health check.
- Current local server run dir:
  /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T10-21-35Z-copilot-chat-ui-followup
- Current staging extension run dir:
  /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T10-21-35Z-copilot-chat-ui-followup
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User supplied screenshots comparing current streaming output to VS Code Copilot Chat closed/open accordions.
- Fixed locally by changing the response timeline UI to Copilot-style accordions:
  - latest in-progress streaming section opens by default; completed sections collapse by default;
  - thinking content has a capped internal scroll area and live auto-scrolls to the bottom;
  - expanded sections have a thin rounded timeline rail and node dots;
  - read/file/edit icons use compact Codicon-style glyphs at text height;
  - live stream and completed JSONL parsers preserve text-edit groups as edit timeline parts with +added/-removed stats when available.
- Changed local files include:
  - /Users/private/Desktop/vslink/standalone/webview/chat/rendering.js
  - /Users/private/Desktop/vslink/standalone/webview/chat.css.js
  - /Users/private/Desktop/vslink/standalone/webview/chat/live-stream.js
  - /Users/private/Desktop/vslink/src/server/liveChatStream.ts
  - /Users/private/Desktop/vslink/src/inbox.ts
  - /Users/private/Desktop/vslink/src/types.ts
  - /Users/private/Desktop/vslink/standalone/webview.html
- Verification passed: `npm run compile`, `cd standalone && npm run build-webview`, JS syntax checks, targeted Node render harness, `git diff --check`, staging VSIX build/install, VS Code relaunched in localhost mode, localhost restarted and extension registered.
- Previous local server run dir:
  /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T09-42-09Z-local-staging
- Previous staging extension run dir:
  /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T09-41-07Z-53-copilot-streaming-accordion-ui
- No push/deploy/commit was done.
- Previous user-visible state below is still useful context.
- User reported streaming UI is less refined than completed JSONL/history rendering.
- Fixed locally by making extension live stream events/history carry JSONL-compatible timeline from workbench chat export snapshots, and making standalone live-stream UI prefer incoming timeline over rough fallback reconstruction.
- Rebuilt standalone webview, built/installed staging VSIX, relaunched VS Code in localhost mode, and restarted localhost on port 8080. No push/deploy/commit.
- Latest run dir:
  /Users/private/Desktop/vslink/.debug-artifacts/2026-06-29T08-47-47Z-52-live-stream-jsonl-parity
- Previous user-visible state below is still useful context.
- User reported localhost browser error:
  `Uncaught ReferenceError: getMessageAttachmentsForRender is not defined` at `renderMessages`.
- Fixed locally by removing a stray unterminated rendering JSDoc comment at the end of `standalone/webview/chat/live-stream.js`.
- Rebuilt standalone webview and restarted localhost on port 8080. No push/deploy/commit.
- Verification harness confirmed `getMessageAttachmentsForRender`, `renderAttachmentSummaryForMessage`, `parseTimelineIntoSections`, and `renderMessages` are real functions after evaluation.
- Previous user-visible state below is still useful context.
- User reported localhost browser error:
  `Uncaught ReferenceError: initChatAttachmentInputHandlers is not defined` at `initCopilotComposerControls`.
- Fixed locally by exporting the attachment initializer on `window` and making the composer initializer call guarded.
- Rebuilt standalone webview and restarted localhost on port 8080. No push/deploy/commit.
- Browser-control reload timed out, but deterministic composer initialization harness passed and generated webview contains the fix markers.
- Historical model-picker state below is from earlier work and still useful context.
- User had reported model selection was using GPT even after selecting Claude Haiku 4.5.
- Fix was implemented and user said it is working.
- Then user reported two follow-ups:
  1. Response footer model/credit number sometimes clipped/hid. Fixed locally in standalone CSS.
  2. Expanded model picker "Other Models" should show GitHub Copilot models before OpenRouter/other providers. Fixed locally in standalone actions.js, but user visual verification is still pending.
- Latest local-only fix:
  /Users/private/Desktop/vslink/standalone/webview/chat/actions.js
  - Made GitHub Copilot provider detection more defensive.
  - Sorts expanded Other Models leftovers with Copilot/compact-upgrade rows before OpenRouter.
  - Rebuilt standalone webview and restarted local server.
- Latest local-only footer fix:
  /Users/private/Desktop/vslink/standalone/webview/chat.css.js
  - `.chat-response-model-credit` should not clip credit number.
- No push/deploy/commit was done for the latest local fixes.

MODEL SELECTION IMPLEMENTATION NOTES
- Extension/root changes made earlier in task 47:
  - /Users/private/Desktop/vslink/src/types.ts: ChatModelSelection includes version.
  - /Users/private/Desktop/vslink/src/cloudConnector.ts: serializes version and filters hidden providers such as copilotcli/claude-code.
  - /Users/private/Desktop/vslink/src/server/chatService.ts: resolves selected model through vscode.lm.selectChatModels using id/vendor/family/version, applies workbench.action.chat.changeModel, and passes the resolved LanguageModelChat object into workbench.action.chat.open options.model.
- Key bug fix: do not pass only a raw model id to chat.open, because VS Code can fall back to current/default GPT.

REVIEW UI STATE TO KNOW
- Review work lives mostly in loop 45:
  /Users/private/Desktop/vslink/loops/45-FIX-REVIEW-TOP-KEEP-ALL-FILES
- Important rule from user: review state should come from VS Code chat editing session data, not DB/localStorage/git reconstruction/browser fallback.
- Review UI has had many fixes:
  - top-level Keep should apply all files, not only current/first file;
  - removed lines must show clean red rows;
  - word-level inline diff must match VS Code style;
  - per-hunk Keep/Undo should work;
  - no toaster/notification for review actions;
  - file icon should use Codicons list-flat style.
- If user reports review issues again, first read loop 45 status and code before changing anything.

DIRTY WORKTREE WARNING
- The repo is dirty. Do not reset or remove user/test files.
- `git status --short --branch` at handoff showed modified root files, dirty standalone, new scripts/debug-loop, src/server/reviewEdits.ts, and untracked test files poem-2.txt through poem-5.txt plus wow.txt.
- Those poem/wow files are likely from live Copilot/review testing; do not delete them unless the user asks.

TESTING AND BROWSER NOTES
- Browser-control plugin has timed out multiple times in this thread. If it times out, do not spend lots of tokens fighting it; run local server and let user verify visually when appropriate.
- User often verifies localhost manually. Keep the local server running if user says "let me test".
- If localhost says connected but send says "connect extension", confirm both browser socket and extension socket are connected. The extension must be launched in localhost mode:
  CONNECT_STAGING_EXTENSION=0 CONNECT_LOCALHOST_EXTENSION=1

NEXT THREAD SUGGESTED START
1. Read this file.
2. Read loops/loop_debug.txt tail.
3. Read the active STATUS.txt for the current user task.
4. Verify current server health if using localhost.
5. Ask the user only if the intended next action is unclear; otherwise continue from the last reported issue.

LATEST LOCAL CHECKPOINT - TASK 73
- User asked for VS Code editor file header controls to be on the same line as the file name, remove Open, show M when modified, make Save turn blue only when modified, and put newly opened/preview tabs at the start.
- Implemented in:
  - /Users/private/Desktop/vslink/standalone/webview/html.js
  - /Users/private/Desktop/vslink/standalone/webview/vscode.js.js
  - /Users/private/Desktop/vslink/standalone/webview/vscode.css.js
  - rebuilt /Users/private/Desktop/vslink/standalone/webview.html
- Verification passed: node checks, standalone build-webview + whitespace trim, generated marker scan, focused VM harness for dirty M/save class/front tabs/preview replacement, standalone diff check, localhost health.
- Local server session 38393 remains healthy on http://localhost:8080. No push/deploy/commit.

LATEST LOCAL CHECKPOINT - TASK 74
- User clarified: remove Open button, keep refresh icon-only, make Save blue always when enabled, and remove dirty/unsaved conditional blue-save code.
- Implemented in:
  - /Users/private/Desktop/vslink/standalone/webview/vscode.js.js
  - /Users/private/Desktop/vslink/standalone/webview/vscode.css.js
  - rebuilt /Users/private/Desktop/vslink/standalone/webview.html
- Marker scan confirms no `vscodeOpenInDesktopBtn`, `openVSCodeSelectedInDesktop`, visible `>Open<`, `.vscode-save-button.dirty`, or save dirty-class toggle remain.
- Verification passed: node checks, build-webview + whitespace trim, VM harness, diff checks, localhost health.

LATEST LOCAL CHECKPOINT - TASK 75
- User asked for opened files to look like VS Code code editor, referencing a syntax-highlighted React screenshot.
- Implemented a VS Code-like highlighted editor in standalone:
  - /Users/private/Desktop/vslink/standalone/webview/html.js
  - /Users/private/Desktop/vslink/standalone/webview/vscode.js.js
  - /Users/private/Desktop/vslink/standalone/webview/vscode.css.js
  - rebuilt /Users/private/Desktop/vslink/standalone/webview.html
- The editor uses `pre#vscodeEditorHighlight` under transparent `textarea#vscodeEditorText`, synced on render/input/scroll, with line numbers, indentation guide background, caret/selection styling, and Dark+-style token classes.
- Verification passed: node checks, React/JSX highlighter harness, editor DOM scroll/highlight harness, build-webview + whitespace trim, generated marker scan, source/template sanity harness, standalone diff check, localhost health.

LATEST LOCAL CHECKPOINT - TASK 76
- User asked to add VS Code-like bottom blue editor details like screenshot: `Ln 8, Col 24`, `Spaces: 2`, `UTF-8`, `LF`, `TypeScript`, remote indicator.
- Implemented in:
  - /Users/private/Desktop/vslink/standalone/webview/html.js
  - /Users/private/Desktop/vslink/standalone/webview/vscode.js.js
  - /Users/private/Desktop/vslink/standalone/webview/vscode.css.js
  - rebuilt /Users/private/Desktop/vslink/standalone/webview.html
- Details update on input/key/click/select/mouse/focus, detect cursor line/column, indentation, EOL, and language label, and hide when no file is selected.
- Verification passed: node checks, status detail VM harness, helper sanity harness, generated marker scan, standalone diff check, localhost health.

LATEST LOCAL CHECKPOINT - TASK 77
- User asked for VS Code/Copilot-like animated border around input while agent is responding, and for review edits strip to look attached/one piece with input.
- Implemented in:
  - /Users/private/Desktop/vslink/standalone/webview/chat.css.js
  - /Users/private/Desktop/vslink/standalone/webview/chat/live-stream.js
  - rebuilt /Users/private/Desktop/vslink/standalone/webview.html
- Composer shell now owns shared rounded border/background. Review edits and attachment shelf are styled as attached segments; input row no longer has its own separate border. Live response state toggles `.is-responding`/`data-responding` on `#chatAttachmentDropTarget` and drives the animated border.
- Verification passed: node checks, composer/review VM harness, generated marker scan, standalone diff check, localhost health.

LATEST LOCAL CHECKPOINT - TASK 78
- User asked to gather info and add VS Code Copilot-style message steering while the model is responding.
- Implemented in:
  - /Users/private/Desktop/vslink/src/server/chatService.ts
  - /Users/private/Desktop/vslink/src/server/cloudService.ts
  - /Users/private/Desktop/vslink/src/server/httpRouter.ts
  - /Users/private/Desktop/vslink/src/server/index.ts
  - /Users/private/Desktop/vslink/src/instanceManager.ts
  - /Users/private/Desktop/vslink/src/types.ts
  - /Users/private/Desktop/vslink/standalone/routes/api.js
  - /Users/private/Desktop/vslink/standalone/webview/index.js
  - /Users/private/Desktop/vslink/standalone/webview/chat/state.js
  - /Users/private/Desktop/vslink/standalone/webview/chat/live-stream.js
  - /Users/private/Desktop/vslink/standalone/webview/chat/actions.js
  - /Users/private/Desktop/vslink/standalone/webview/chat.css.js
  - rebuilt /Users/private/Desktop/vslink/standalone/webview.html
- Behavior: while the active visible response is running, typed composer text sends `steer_chat` and shows a `STEERING` strip with right-aligned bubbles/actions; empty composer still keeps Stop behavior.
- Extension sync path tries `workbench.action.chat.steerWithMessage`, then `workbench.action.chat.queueMessage`, then normal submit/newline through the active Copilot input.
- Verification passed: node checks, npm compile, standalone build-webview/trim, generated marker scan, root/standalone diff checks, localhost health.
- Staging VSIX rebuilt/installed and VS Code restarted with `vscodemobile.vscodemobile-staging@0.3.3`; browser should be hard-refreshed before testing the new composer UI.
