chore(release): prepare 0.17.5

[benvinegar]

Summary

• Backport the headless OpenTUI lazy-loading fix from fix(cli): lazy-load OpenTUI for headless commands #590.
• Backport the terminal cell-width measurement optimization from perf(ui): optimize terminal cell width measurement (#579) #586.
• Adapt the compiled headless regression test to the commands available on 0.17.x.
• Prepare hunkdiff 0.17.5 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 run test (1,045 passed, 9 skipped)
• bun run test:integration (53 passed)
• bun run test:tty-smoke (9 passed)
• bun run build:bin
• HUNK_TEST_EXECUTABLE="$PWD/dist/hunk" bun test ./test/cli/compiled-headless-native-lib.test.ts (4 passed)
• bun run ./scripts/check-release-version.ts v0.17.5
• 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 0.17.5 maintenance release.

• Lazily load OpenTUI only for interactive startup plans and add compiled headless portability coverage.
• Optimize terminal-width measurement for single-scalar grapheme clusters while retaining the existing fallback for complex clusters.
• Simplify theme data to use semantic syntax colors and consume the corresponding patch changesets.

Confidence Score: 5/5

The PR appears safe to merge, with the release changes and both backported fixes coherently covered by targeted tests and CI.

The lazy import boundary preserves the existing interactive lifecycle while keeping OpenTUI value imports off headless paths, and the width optimization retains the established fallback for complex grapheme clusters without leaving a concrete changed-code failure.

Important Files Changed

Filename	Overview
src/main.tsx	Defers static-pager and interactive UI imports so ordinary headless commands avoid OpenTUI initialization.
src/ui/runInteractiveApp.tsx	Moves the existing interactive renderer, session client, signal handling, and shutdown lifecycle behind a lazy boundary.
src/ui/lib/text.ts	Adds a scalar-width fast path while preserving string-width handling for multi-scalar grapheme clusters.
src/ui/themes.ts	Removes the unused OpenTUI SyntaxStyle layer and retains semantic syntax-color resolution for built-in and custom themes.
test/cli/compiled-headless-native-lib.test.ts	Adds cross-platform compiled-binary regression coverage proving headless paths do not extract OpenTUI's native library.
.github/workflows/ci.yml	Runs the compiled headless regression against platform-correct binary paths in release CI.
.github/workflows/pr-ci.yml	Adds macOS and Windows portability checks and verifies compiled Linux headless and watch behavior.
package.json	Bumps the release to 0.17.5 and adds the terminal-width dependency and benchmark command.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    CLI[CLI startup] --> Plan{Startup plan}
    Plan -->|Headless| Headless[Help, session, daemon, or pager path]
    Plan -->|Static diff pager| Static[Lazy-load static diff renderer]
    Plan -->|Interactive app| Interactive[Lazy-load OpenTUI app]
    Text[Terminal text] --> Cluster{Single-scalar cluster?}
    Cluster -->|Yes| Fast[Zero-width check plus East Asian Width]
    Cluster -->|No| Fallback[string-width fallback]
    Fast --> Cells[Terminal cell geometry]
    Fallback --> Cells

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