feat: Professional editor UI redesign - 3-column layout (docs | editor | sidebar) - Documents panel always visible on desktop - Import/export moved to left sidebar - Removed CTA button from nav - Replaced all emojis with SVG icons - Clean toolbar with separator - Mobile: docs stay as overlay sidebar

fix: Remove 'Apply All' button - conflicts with spelling+grammar pipeline

fix: Word-level grammar suggestions + robust grammar model validation

fix: Proper grammar suggestion generation — keep spelling suggestions, add grammar on top

fix: Add missing SequenceMatcher import

fix: Rewrite suggestion system — unified diff eliminates text duplication - Instead of mapping grammar offsets back through OffsetMapper (broken), now: - Run full pipeline: spelling -> grammar -> punctuation - Do ONE clean diff: original_text vs final_text - Classify each change as spelling/grammar based on what spelling changed - Guarantees non-overlapping suggestions with correct offsets

fix: Prevent overlapping spelling+grammar suggestions from duplicating text - Backend: Skip grammar suggestions that overlap with existing spelling ranges - Frontend: applyAllSuggestions skips overlapping ranges to prevent duplication

debug: Add grammar diff logging to diagnose missing suggestions

fix: Grammar shows word-level suggestions instead of sentence chunks - Break grammar diffs into individual word changes - Skip grammar suggestions overlapping with spelling - Add alternatives to grammar suggestions - Prevents duplication on Apply All

feat: NLP-2 Grammar model integration (Bayan_Arabic_Grammar T5) - New: src/nlp/grammar/grammar_service.py (lazy T5 loading) - Dockerfile: pre-download grammar model (2.14GB safetensors) - Wire /api/analyze Step 2 to grammar service - Update /api/grammar standalone endpoint - Add _grammar_available() health check

feat: Show 3 spelling alternatives + keep-as-is option - Backend: Generate alternatives via EditDistanceCorrector - Tooltip: Multiple clickable correction buttons - Sidebar cards: Alt chips for each suggestion - Dismiss button removes error highlight (keep original word)

fix: Handle N-to-M word replacements in analyze post-filter - Process each original word individually against corrected segment - Accept 1-to-1 small edits and 1-to-N word splits within multi-word blocks - Previously all multi-word blocks were silently rejected

fix: Relax analyze post-filters to show AraSpell corrections in editor - Allow 3 char edits (was 2), 50% ratio (was 40%) - Lower word-split threshold from 12 to 5 chars

feat: Wire /api/analyze to use AraSpell service for real-time editor spelling

fix: Remove duplicate /api/spelling route causing AssertionError

feat: Add AraSpell spelling correction endpoint (POST /api/spelling) with lazy model loading - Extract AraSpell pipeline into src/nlp/spelling/ (araspell_rules.py + araspell_service.py) - Pre-download AraBERT encoder-decoder + checkpoint in Dockerfile - Lazy load on first request, contextual=False to save RAM - Update health check to report spelling status

fix: Always load models on import (RENDER/GUNICORN_LOADED env vars not set in HF Spaces)

debug: Add startup error tracking + memory info to debug endpoint

fix: Load summarization model locally with float16 (HF free tier has no outbound DNS)

fix: Add wait_for_model, debug endpoint, and better HF API error handling

feat: Switch all NLP models to HuggingFace Inference API

authDone Ready for deployment

added light theme and ISLAMIC RAG and fixed the UI/UX issues and added the auth

initial UI