Add inline review comments to git diff pane (#530)

* Add inline git diff review comments

Adds a review draft store keyed per diff target, inline gutter + thread
rendering in the diff pane, and a generated review attachment that flows
through the composer and agent providers.

* Strip generated review attachments before saving to draft store

Drafts persist only UserComposerAttachment (no review kind), so filter the
auto-generated review attachment out when seeding the draft or restoring
after a failed auto-submit.

* Fix inline review typecheck and test harness drift

* Unslop inline review feature

- Fix stale-closure bug in composer queueMessage: clear drafts for the
  actually-queued attachments, not the latest props
- Drop dead useEffect mirroring initialBody in inline review editor
  (parent already remounts via key)
- Restore typed AgentAttachment signature on renderPromptAttachmentAsText;
  delete schema redispatch helper and drop null-checks across 5 providers
- Inline single-use review prompt formatters and replace marker switch
  with const map
- Drop normalizeComment field-copy redundancy after type guard
- Remove __reviewDraftStoreTestUtils export; test migration via
  rehydrate() public path
- Refactor findTarget to return the target line directly (no non-null
  assertion at call site)
- Drop redundant isGeneratedReviewAttachment helper; inline kind check

* Update review pill to withUnistyles after rebase

Main's unistyles refactor stripped useUnistyles in favor of withUnistyles +
StyleSheet. Convert ReviewAttachmentPill to use ThemedCircleDot + ICON_SIZE so
the icon picks up the foreground-muted mapping like the other pills.

* Fix lint and typecheck after rebase onto main

Resolve drift after main's withUnistyles refactor:
- Composer complexity: dedup voice?.isVoiceSwitching to drop to 20
- Move per-comment Pressable handlers in git-diff-inline-review into
  CommentRow subcomponent so callbacks are stable
- Hoist style/onPress factories to module level (iconButton,
  iconButtonDestructive, ghostButton)
- Memoize style arrays in git-diff-pane review wrappers
- Replace inline {} placeholders with useMemo styles
- review-draft-store: extract applyCommentUpdates to avoid map-spread,
  include input.key in useMemo deps
- Test fixtures: hoist EMPTY_COMMENTS, add buildReviewActions helper

* Drop GitDiffPane default param to keep complexity at 20

After the rebase, main's `enabled = true` default param combined with the
inline review additions pushed cyclomatic complexity to 21. Drop the
default and resolve `enabled !== false` at the call site (comparison
doesn't count toward complexity).

* Reshape inline review behind @/review module

Drop the `generated: true` attachment flag and consolidate inline-review
logic behind a deep `@/review` module so composer and git-diff-pane stop
hand-composing review primitives. Workspace-scoped review snapshots are
now derived at submit/queue time rather than persisted in the draft
store. Composer review references drop from 51 to 4; git-diff-pane drops
~108 lines and now consumes a controller hook + slot components.

* Fix optimistic review attachments

packages/app/src/screens/workspace/workspace-draft-agent-tab.test.tsx

@@ -15,12 +15,16 @@ import { WorkspaceDraftAgentTab } from "./workspace-draft-agent-tab";
 
 const {
   createAgentMock,
+  getCheckoutStatusMock,
+  onRuntimeEventMock,
   latestComposerText,
   latestComposerDisabled,
   latestStreamText,
   onCreatedMock,
 } = vi.hoisted(() => ({
   createAgentMock: vi.fn(),
+  getCheckoutStatusMock: vi.fn(),
+  onRuntimeEventMock: vi.fn(() => () => {}),
   latestComposerText: { current: null as string | null },
   latestComposerDisabled: { current: null as boolean | null },
   latestStreamText: { current: null as string | null },
@@ -43,6 +47,7 @@ vi.mock("react-native-unistyles", () => ({
           })
         : factory,
   },
+  useUnistyles: () => ({ rt: { breakpoint: "lg" } }),
 }));
 
 vi.mock("react-native-safe-area-context", () => ({
@@ -57,6 +62,8 @@ vi.mock("@/constants/platform", () => ({
 vi.mock("@/runtime/host-runtime", () => ({
   useHostRuntimeClient: () => ({
     createAgent: createAgentMock,
+    getCheckoutStatus: getCheckoutStatusMock,
+    on: onRuntimeEventMock,
   }),
   useHostRuntimeIsConnected: () => true,
 }));
@@ -131,6 +138,16 @@ vi.mock("@/components/composer-attachments", () => ({
   }),
 }));
 
+vi.mock("@/attachments/composer-workspace-attachments", () => ({
+  composerWorkspaceAttachment: {
+    userAttachmentsOnly: (attachments: ComposerAttachment[]) =>
+      attachments.filter(
+        (attachment): attachment is Exclude<ComposerAttachment, { kind: "review" }> =>
+          attachment.kind !== "review",
+      ),
+  },
+}));
+
 vi.mock("@/components/composer", () => ({
   Composer: ({
     value,
@@ -196,6 +213,23 @@ beforeEach(() => {
   root = createRoot(container);
   queryClient = new QueryClient({ defaultOptions: { queries: { retry: false } } });
   createAgentMock.mockReset();
+  getCheckoutStatusMock.mockResolvedValue({
+    cwd: "/repo/.paseo/worktrees/workspace-1",
+    error: null,
+    requestId: "checkout-status-1",
+    isGit: false,
+    isPaseoOwnedWorktree: true,
+    repoRoot: null,
+    currentBranch: null,
+    isDirty: false,
+    baseRef: null,
+    aheadBehind: null,
+    aheadOfOrigin: null,
+    behindOfOrigin: null,
+    hasRemote: false,
+    remoteUrl: null,
+  });
+  onRuntimeEventMock.mockClear();
   onCreatedMock.mockReset();
   latestComposerText.current = null;
   latestComposerDisabled.current = null;