feat: Add vectorized summary field and migration tools

- Add 'summary' field to Chunk collection (vectorized with text2vec)
- Migrate from Dynamic index to HNSW + RQ for both Chunk and Summary
- Add LLM summarizer module (utils/llm_summarizer.py)
- Add migration scripts (migrate_add_summary.py, restore_*.py)
- Add summary generation utilities and progress tracking
- Add testing and cleaning tools (outils_test_and_cleaning/)
- Add comprehensive documentation (ANALYSE_*.md, guides)
- Remove obsolete files (linear_config.py, old test files)
- Update .gitignore to exclude backups and temp files

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

generations/library_rag/resume_summaries.bat

@@ -0,0 +1,19 @@
+@echo off
+echo ========================================
+echo REPRISE GENERATION RESUMES
+echo ========================================
+echo.
+
+cd /d "%~dp0"
+
+echo Chunks deja traites:
+python -c "import json; p=json.load(open('summary_generation_progress.json')); print(f'  -> {p[\"total_processed\"]} chunks traites')" 2>nul || echo   -> Aucun chunk traite
+
+echo.
+echo Lancement de la generation...
+echo (Ctrl+C pour arreter - progression sauvegardee)
+echo.
+
+python ..\..\utils\generate_all_summaries.py
+
+pause