Attach pull request feedback to chat (#1400)

* feat(app): add pull request panel context actions

Attach pull request comments, reviews, and failed check details to chat context. The PR panel now lives in its own module so the activity, query, and context policies have one home.

* fix(server): mark capped check details as truncated

* fix(app): preserve concurrent PR panel attachments

* fix(server): preserve annotation truncation state

* fix(app): keep matrix check attachments distinct

* fix(app): streamline pull request context attachments

* fix(app): simplify pull request feedback rendering

* feat(app): group pull request review threads

* fix(app): tidy pull request panel boundaries

* fix: use worktree cwd for dev services

* fix(app): keep git query keys UI-free

* feat(app): collapse resolved comments and add chat actions to headers

* fix: address PR feedback and Playwright flakes

* fix(app): hide check chat action without attachment scope

* fix(server): dedupe inline review timeline comments

docs/unistyles.md

@@ -335,7 +335,7 @@ For paint-layer bugs, use high-contrast probes:
 3. Screenshot the simulator and sample pixels to see which color fills the area.
 4. Remove the probes before committing.
 
-The welcome-screen investigation used this approach to prove the white layer was the `ScrollView` content container. Deep-dive evidence is in [welcome-theme-split-research.md](/Users/moboudra/.paseo/notes/welcome-theme-split-research.md).
+The welcome-screen investigation used this approach to prove the white layer was the `ScrollView` content container.
 
 ## References
 
@@ -349,4 +349,3 @@ The welcome-screen investigation used this approach to prove the white layer was
 - [GitHub issue #550: ScrollView sticky-header theme updates](https://github.com/jpudysz/react-native-unistyles/issues/550)
 - [GitHub issue #817: `UnistylesRuntime.themeName` does not re-render](https://github.com/jpudysz/react-native-unistyles/issues/817)
 - [GitHub issue #1030: `Image.tintColor` and native style update edge case](https://github.com/jpudysz/react-native-unistyles/issues/1030)
-- [Local research note: welcome theme split](/Users/moboudra/.paseo/notes/welcome-theme-split-research.md)