chore(release): prepare 0.17.4

[benvinegar]

Summary

• Backport the rapid draft-note save deduplication fix from fix(review): save draft notes exactly once under rapid Ctrl+S #581.
• Backport the macOS threaded-rendering fix from fix(ui): restore threaded rendering on macOS #539.
• Prepare hunkdiff 0.17.4 by consuming both patch changesets.
• Keep the maintenance release narrow and exclude unrelated changes from main.

Verification

• bun run typecheck
• bun run lint
• bun run format:check
• bun test (1,097 passed, 14 skipped)
• bun run test:integration (53 passed)
• bun run test:tty-smoke (9 passed)
• bun run ./scripts/check-release-version.ts v0.17.4
• git diff --check origin/0.17.x...HEAD

This PR description was generated by Pi using OpenAI GPT-5.3

[greptile-apps]

Greptile Summary

Prepare the 0.17.4 maintenance release.

• Restore OpenTUI’s platform-default renderer threading behavior.
• Make draft-note saves synchronously idempotent and generate unique saved-note identifiers.
• Add unit and PTY regression coverage for rapid duplicate saves.
• Update the package version and changelog.

Confidence Score: 5/5

The PR appears safe to merge with no actionable correctness or security issues identified.

The renderer change restores the dependency’s platform default, while the note-save guard suppresses repeated calls synchronously and preserves opaque, unique note identifiers across existing in-repository consumers.

Important Files Changed

Filename	Overview
src/main.tsx	Removes the renderer-thread override so OpenTUI can use its platform-safe default.
src/ui/hooks/useReviewController.ts	Adds synchronous draft-save deduplication and a per-controller sequence suffix for saved-note ID uniqueness.
src/ui/hooks/useReviewController.test.tsx	Adds focused regression coverage for duplicate saves and same-millisecond saved-note IDs.
test/pty/notes.test.ts	Verifies end-to-end that coalesced Ctrl+S input persists and renders only one note.
package.json	Advances the hunkdiff package version from 0.17.3 to 0.17.4.
CHANGELOG.md	Documents the renderer-threading and draft-note deduplication fixes in the 0.17.4 release notes.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
  A[User triggers save] --> B{Draft exists and was not saved}
  B -->|No| C[Return without persisting]
  B -->|Yes| D[Mark draft saved synchronously]
  D --> E[Generate timestamp and sequence ID]
  E --> F[Append one user note]
  F --> G[Clear active draft]

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