feat: Implementation of Duplication Tests and Knowledge Context UX Enhancements

[ericksonlopes]

Description

Implemented a comprehensive test suite for the chunk duplication feature, covering repository, service, and API layers. Additionally, improved the sidebar UX by enabling simple-toggle multi-selection, fixing indicator icon bugs, and adding a search-by-name field for subjects.

Tasks

• Create SQL repository tests for chunk duplicates tests/infrastructure/repositories/sql/test_chunk_duplicate_repository.py
• Create service tests for duplicate detection logic tests/infrastructure/services/test_chunk_duplicate_service.py
• Create API router tests for duplicate endpoints tests/presentation/api/routes/test_duplicate_router.py
• Update SidebarContext.tsx to enable simple toggle selection for multiple bases.
• Fix Check icon bug in multi-selection in SidebarContext.tsx.
• Add search filter field in SidebarContext.tsx.
• Fix tests/conftest.py import path for infrastructure.

Additional Context

The sidebar changes eliminate the need for Ctrl+Click, making the multi-knowledge selection more discoverable. The search field ensures usability as the number of knowledge bases grows.