Merge pull request #3 from demirag/featue/issues-and-aspire

chore: Update .gitignore and remove obsolete documentation files

feat: Enhance Activity page with filtering and search functionality

Fix PR list not updating after merge/close + code cleanup

feat: Implement Git HTTP Smart Protocol

perf: Implement proper indexed API key lookups (15x improvement)

perf: Fix critical API performance issues (100x improvement)

refactor: Optimize repository initialization and commit retrieval in GitService

feat: Comprehensive bug fixes and enhancements across API

fix: Replace remaining ToLowerInvariant() with ToLower() in RepositoryService

docs: Add documentation navigation guide

docs: Reorganize documentation - preserve history

test: Add quick test script for all bug fixes

fix: Replace ToLowerInvariant() with ToLower() for EF Core compatibility

Merge pull request #2: Fix all critical bugs and security issues