* fix: properly emit update metadata for intel macs

* refactor: fix broken parsing of quoted values

…st (#582)

* Add PR template with contribution notice and review checklist

- Add `.github/pull_request_template.md`
- Set expectations that external PRs may not be reviewed or merged
- Require clear change rationale plus UI before/after media when applicable

* Add contribution policy notice and link detailed guidelines

- add CONTRIBUTING.md with clear expectations for external PRs
- update README to direct would-be contributors to CONTRIBUTING.md first

* improvements

* sidebar ui pt2

* back flow

* fix back flow

The thread error banner had no way to be dismissed. Users hitting
unrecoverable errors (e.g. missing gh CLI during PR creation) were
stuck with a persistent error banner and no way to clear it.

Add a dismiss (X) button to ThreadErrorBanner using the existing
AlertAction component, wired to clear the thread error via
setThreadError(id, null).

Closes #496

Wire up Electron's context-menu event on webContents to surface
dictionary suggestions for misspelled words. Standard edit actions
(Cut, Copy, Paste, Select All) appear in all context menus.

Related to #473

Adds a delete button to the action edit dialog with a confirmation
alert. Fixes #208.

Adjust the Electron sidebar header to properly center the T3 wordmark
with the native window controls. The logo was sitting ~2px too low and
~8px too close to the traffic lights.

- Reduce wordmark container top margin from mt-2 (8px) to mt-1.5 (6px)
- Increase Electron header left padding from 82px to 90px for proper
  traffic light clearance
- Match the desktop update button margin to stay aligned

Closes #564

* fix(scripts): enable shell mode on Windows for .cmd shim resolution

On Windows, tools like `bun`, `npm`, `turbo`, and `bunx` are installed
as `.cmd` shims. Node's `child_process.spawn` cannot resolve these
without `shell: true`, causing `PlatformError: NotFound` on fresh
builds where there is no Turbo cache.

Add `shell: process.platform === "win32"` to all ChildProcess.make
calls in cli.ts, dev-runner.ts, and build-desktop-artifact.ts.

Closes #474

* docs: add comments explaining Windows shell spawn requirement

* docs: add shell spawn comments to remaining call sites

- Ensure the updater publish job checks out the target ref
- Initialize Node using the repository's package.json version file before downloading artifacts