[sanchitrk]

Replaces the Dashboard widget with All Threads, a Linear-like list of every thread, and turns Projects into a tree page. Stacked on #140 (feat/sync).

All Threads

• Read: dashboard.list is renamed threads.list (contract types ThreadsBy, ListedThread, ThreadList, AllThreads, readTopics.threads), and each thread now carries its machine. The E2E test and artifacts are renamed with it; the artifact diff is the added machine field only.
• List:
  • Sections by status, priority, group or none, each with a count.
  • Ordering by manual ordering, last updated, or priority.
  • Filters for status, priority and machine.
  • Display options saved per view in kv.
• Rows:
  • Status, priority, group and color pickers, built as searchable cmdk lists like Linear's. 1–9 pick, and typing a new group name creates it.
  • Keyboard: arrows or j/k to move, Enter to open, S/P/L/C for the pickers.
  • Drag to reorder within a section or move between sections; a drop on a header lands at the top.
  • Groups are created, renamed, recolored, reordered and deleted from their headers.
• Where it opens: a full page at /threads, from the sidebar or the palette's Navigation group.

Performance (following t3code's sidebar)

• Memoized rows with one stable actions object.
• Each read keeps the previous object for every thread and group that didn't change.
• One shared picker instead of four popovers per row.
• The run mark reads only its own thread's slice of sentAtom.
• Cached date formatters, and drag work found once per section.
• Measured at 1,004 threads: a key press or a drag-over went from about 640 ms to one frame, and a status change's refresh no longer blocks.

Also

• Projects: a page under Navigation instead of a widget, rendered with @pierre/trees. Projects are section bands, then sessions, then forks; a main thread or fork opens in a workspace.
• Sidebar: New, Search and All Threads as one list, and session titles in regular weight.
• Palette: a chosen theme now sticks (closing used to restore the old one), and a highlighted theme previews at once.
• Sessions: switching opens at the end without the up-down jump. The list stays hidden until it has scrolled, and the composer height carries over between conversations.
• cn: knows the theme's own type sizes, so text-ui replaces a component's text-sm.

React Compiler and render fixes (latest)

• React Compiler turned on for apps/web; it skips only two components, both on purpose.

• Render fixes, measured with 80 split frames and 80 concurrent real openrouter runs:

  	Before	After
  Main thread blocked	27%	7%
  Worst freeze	2.5 s	0.5 s
  Frames over 50 ms	112	12

  During one run, sidebar rows render 12 times instead of 6,596, and conversations 28 times instead of 993.

  • The fork handler keeps one identity, via useStableCallback ported from t3code.
  • The sidebar's read keeps unchanged sessions (shared kernel/keep.ts), and rows get plain values instead of a fresh spread.
  • The session title source keeps its previous value when nothing changed.
  • Each frame builds its shell once and renders its widget through a memoized body.
  • Sent state is one atom per thread.

• Frame headers: a session frame shows the run's spinner while working, as the sidebar does.

• Fix: renaming a group from its menu works.

• Clock and spinners: a shared minute/second clock drives relative times and elapsed timers; spinners pause when off-screen. Memo hooks the compiler makes redundant are removed.

• Projects tree:

  • forks nest under the thread they were cut from, at any depth (threads.list now returns originThreadId);
  • fork rows are marked "fork";
  • bands show each project's folder, muted;
  • the sticky band stays opaque.

Verification

• vp check, vp run typecheck and the apps/server suite (26/26) pass.
• The 80-frame split test ran on real openrouter / stealth/crouton-alpha calls, with 1,000 seeded threads, 1,000 seeded sessions and a 400-turn mock conversation in app.db.
• Working spinners checked live in the sidebar, frame headers, the workspace tab and All Threads.
• Checked in the Electron app with real gpt-6-luna calls, driven over CDP:
  • list, grouping, ordering, filters, pickers;
  • drags, each writing one row in app.db;
  • groups, keyboard, Enter, live run marks, display options across a reload;
  • the Projects tree, theme switching, session switching.

Known follow-ups

• Add Project: a path typed after the prefilled ~/ gets appended to it, and a missing folder is created silently.
• Error boundary: a widget that throws takes down the whole window; there's no per-widget boundary.
• Refresh during streaming: the list re-reads only after a 50 ms pause in events. Not measured during a long run.

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