Implement expandable volume breakdown with page chips in search panel

Fix Volume Breakdown query expansion discrepancy in SearchService

Implement hot-reloaded search rules config file for monk prefixes

Fix synonym highlighting in snippet and reader panel, and fix health diagnostics 500 error

Add health diag endpoint for troubleshooting vector search

Implement synonym and related words highlighting in search results and reader panel

Fix write permissions crash on Hugging Face Spaces by configuring paths before downloading and adding a writability check on /data

Fix AI search by appending query expansions instead of replacing the original query

fix: pass task='retrieval.query' to SentenceTransformers encode when using Jina or fine-tuned embedding models to prevent Task missing error

fix: add peft to requirements.txt to support loading fine-tuned LoRA models in SentenceTransformers

feat: add 'Search' option to selection popup so users can search highlighted text directly in the database

fix: resolve pythainlp and huggingface_hub Permission Denied errors by setting HOME and HF_HOME env variables, and add 'Try searching with AI' button to empty search state

feat: support Hugging Face persistent storage at /data and local Docker volumes for persisting SQLite database (search logs/cache) across container rebuilds

fix: extract and highlight individual matched words from snippets in both AI and FTS modes

fix: reset totalPages to 0 on volume change to prevent stale totalPages capping target page number

fix: highlight matching keywords when jumping from volume breakdown bars

fix: highlight not showing - set highlightQuery after setVolume not before

feat: highlight search keywords on reader page with auto-scroll to first match

feat: FTS5-first + AI button search with split button mode selector

fix: update QWEN_MODEL_ID default to 1.5B in main.py (missed in previous commit)

chore: upgrade Qwen model default from 0.5B to 1.5B Instruct

feat: update technology badge in NavDrawer overview tab to Turbovec + Reranker

feat: complete turbovec search backend integration, ignore tvim file in git, and stabilize mobile UI transitions

feat: add Google-style breadcrumb navigation to search results

fix: resolve critical vector embedding bug and refine query transform prompt for prefix word matching

fix: serialize concurrent thread access to in-memory SQLite connection to prevent race conditions and deadlocks

fix: change search result card div to button to fix touch/click event bubbling on iOS Safari

Implement SQLite FTS5 prefix matching to support partial Thai word search and resolve segmentation tokenization issues

Swap default Query-Transform LLM to Qwen2.5-0.5B-Instruct to significantly reduce memory footprint and CPU generation latency on Hugging Face free tier

Optimize PyTorch resource usage: set CPU threads to 1 to prevent health check timeouts and reduce max generation tokens to 45

Optimize backend preloading: preload Qwen & Jina-v5 at startup, cache Qwen in QueryTransformService class attributes, and bypass Ollama connection attempts when not ready

ux: optimize mobile search result tap responsiveness and drawer closing animation smoothness

fix: optimize local mode Qdrant restore by replacing server snapshots with pre-packaged SQLite databases

docs: add SEARCH_ARCHITECTURE_V3 spec and include helper scripts for reindexing and RAG query testing

fix: increase Ollama HTTP client timeout to 30.0s to handle model cold starts resiliently

fix: implement query_batch_points and sequential fallback in SearchService, and raise 404 on page not found in pages router

feat: implement Search Architecture V3 (Hybrid search with Qwen query transformation, batch embeddings, batch Qdrant searches, and optimized CPU reranking)

ux(ai): move clear history button from header to settings bar to prevent accidental taps on mobile

fix(reader): use theme-aware muted color for footnote text instead of hardcoded text-white/50

design(ai): align disclaimer position below buttons in Answer Card and optimize bottom spacing

fix(ai): resolve disclaimer text overlapping in header by relocating to footer

design(ai): enhance speed dial labels clarity and implement responsive positioning clamping

feat(ai): update AI Chat color scheme to modern Zen Teal & Emerald palette

docs: update arch doc to v2.4.0 and move maximize button to bottom-right

feat(ai): enable full screen focus mode for individual chat history messages

style(ai): increase speed dial label font size and add top safe area padding for Focus Mode

feat(ai): design improvements for chat popup, speeddial menu, resizable answer card, and centered header disclaimer

feat: refine 84000.org attribution and add explicit disclaimer

feat: add 84000.org source attribution to overview tab

fix: reset reader scroll position to top when new page loads