fix: resolve test hanging issue in CI

- Reduce CI reporters to prevent resource contention (removed json/html)
- Optimize coverage settings with all:false and skipFull:true
- Fix MSW waitForRequest memory leak by adding timeout and cleanup
- Add teardownTimeout to vitest config
- Add 10-minute timeout to GitHub Actions job
- Create emergency test script without coverage for debugging

The main issues were:
1. Coverage collection with multiple reporters causing exhaustion
2. MSW event listener that could hang indefinitely
3. Too many simultaneous reporters (4 at once)

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

package.json

@@ -23,7 +23,7 @@
     "test:ui": "vitest --ui",
     "test:run": "vitest run",
     "test:coverage": "vitest run --coverage",
-    "test:ci": "vitest run --coverage --coverage.thresholds.lines=0 --coverage.thresholds.functions=0 --coverage.thresholds.branches=0 --coverage.thresholds.statements=0",
+    "test:ci": "vitest run --coverage --coverage.thresholds.lines=0 --coverage.thresholds.functions=0 --coverage.thresholds.branches=0 --coverage.thresholds.statements=0 --reporter=default --reporter=junit",
     "test:watch": "vitest watch",
     "test:unit": "vitest run tests/unit",
     "test:integration": "vitest run tests/integration",