feat(PINE-32): E2E-006 vector search/query tests

[stepandel]

Summary

• Add comprehensive E2E tests for vector search functionality
• Test text queries, vector ID search, and direct vector value search
• Verify search results with scores and proper sorting
• Test top_k parameter adjustments and metadata filtering
• Add Playwright test infrastructure for E2E testing

Test Coverage

Implemented (Pinecone)

✅ Text query search with score verification
✅ Vector ID search (find similar vectors)
✅ Vector values search (paste values)
✅ Top-k parameter adjustment (1, 3, 5, 10)
✅ Single metadata filters
✅ Multiple metadata filters with $and
✅ Numeric filter operators ($gte, $lt, $in)
✅ Clear search and return to browse mode
✅ Empty search results handling

Placeholder Tests

⏭️ Qdrant search tests (6 tests)
⏭️ Weaviate search tests (6 tests)

Files Added

• e2e/vector-search.spec.ts - 639 lines of comprehensive tests
• e2e/electron.setup.ts - Test helper functions
• playwright.config.ts - Playwright configuration
• docker-compose.test.yml - Docker services for testing
• Test scripts in package.json

Test Plan

• All tests listed and validate successfully
• Playwright infrastructure set up
• Package.json updated with test scripts
• Docker compose configuration for local testing
• Run tests with real Pinecone API key (requires manual testing)
• Implement Qdrant tests when adapter is integrated
• Implement Weaviate tests when adapter is integrated

🤖 Generated with Claude Code

[claude]

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Code review

No issues found. Checked for bugs and CLAUDE.md compliance.

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feat/pine-32-vector-search-tests

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