docs(progress): Update progress docs with all ChatGPT feedback response work

Updated progress documentation to reflect completion of:
- Priority 1: Version unification, repo hygiene
- Priority 2.2: TODO classification
- Priority 3: CI workflows
- Priority 4: Packaging fixes
- Priority 5: Documentation consolidation

All quick wins and infrastructure improvements documented.

Remaining: Priority 2.1 (Native plugin refactoring - larger work)

docs/progress/01-CHANGELOG-WORK.md

@@ -71,6 +71,29 @@ For release notes, see [CHANGELOG.md](../../CHANGELOG.md).
   - **Documentation**: Created `docs/TODO-CLASSIFICATION.md` with detailed inventory
   - **Next Steps**: Create GitHub issues for 7 Must Ship items, document Phase 2 features
   - **Verification**: All TODOs classified, critical items identified, documentation complete
+- **2025-12-23 — Priority 3 Complete**: CI/CD infrastructure
+  - **GitHub Actions Workflows**: Created `.github/workflows/ci.yml` with three jobs
+    - **Node/TS job**: Lint, typecheck, build, local CI (`./ci/run.sh`), package check
+    - **Android job**: Tests and lint with graceful fallbacks for standalone plugin context
+    - **iOS job**: Build and tests on macOS runner with graceful fallbacks
+  - **Graceful Fallbacks**: All jobs handle missing gradlew/workspace gracefully (expected in standalone context)
+  - **Verification**: Workflow file created, follows GitHub Actions best practices, ready for merge gates
+- **2025-12-23 — Priority 4 Complete**: Packaging fixes
+  - **Workspace Package Dist**: Added `packages/*/dist/` and `packages/*/build/` to `.gitignore`
+  - **Verification**: No dist/ artifacts are tracked in git, prevents future commits
+- **2025-12-23 — Priority 5 Complete**: Documentation consolidation
+  - **README Enhancement**: Added Quick Start section with entry point links
+    - Links to Getting Started guide, Quick Start examples, Common Patterns, Troubleshooting
+  - **Compatibility Matrix**: Added comprehensive compatibility information
+    - Capacitor versions table with status indicators
+    - Android requirements (minSdk 23, targetSdk 35, permissions)
+    - iOS requirements (iOS 13.0+)
+    - Electron requirements (20+)
+    - Platform support summary table
+  - **Behavioral Contracts**: Added section documenting guaranteed vs best-effort behaviors
+    - Guaranteed: Monotonic watermark, idempotency, TTL semantics, schedule persistence, recovery
+    - Best-effort: Delivery in Doze mode, background fetch timing, battery optimization
+  - **Verification**: README structure improved, all requested documentation added
 
 ### Changed
 - **2025-12-22 — P2.6 COMPLETE**: Type safety cleanup — eliminated all `any` usages except documented TypeScript mixin limitation