Fix: Enhance Jazm and Nasb logic with camel_tools for Af'al Khamsa and defective verbs

UI/UX: Add Quran standalone tab, summarize textarea, floating selection bar, fix clear editor, remove duplicate button

FIX-47: Expand hamza whitelist with verb+pronoun forms

FIX-44: OOV cleanup pass between spelling and grammar stages

FIX-38/39 + Layer 1/2/3: Benchmark normalization + spelling safety + grammar rules

FIX-33b: Protect second+third preposition regexes with blocklist

FIX-36: Merge punctuation into grammar when they overlap same span

FIX-33/34/35: Fix infinite loop — grammar corruption + spelling conflict

Fix grammar rules output log — remove hardcoded ... truncation marker

Phase 14c: Fix FIX-31 whitespace bug + fix misleading log truncation

Phase 14b: Fix spelling punct hallucination + cross-stage overlap

Phase 14: Fix StageLocker over-locking + PatchSet overlap resolution

Merge punctuation_rules V1+V2: V2 threshold+fallback, V1 softened exclamation guard for short texts

Fix: TerminalPunctuationGuard for short phrases and comprehensive Nasb/Jazm grammar rules fixes

Feat: Add demonstrative and noun-adjective dual/plural agreement rules

Fix: Prevent conditional sentences rule from overcorrecting 'إن' and 'من' by requiring the subsequent word to be a verb

Fix: Preserve input punctuation during grammar correction

Phase 11.5: Adversarial diagnostic + 4 critical pipeline fixes

Phase 11: Hierarchical StageLocker — grammar overrides spelling locks

Phase 13: Fix punctuation terminal injection filter (context-aware Rule 0)

Phase 12: Spelling pipeline integration + Benchmark integrity fixes

FIX-26: Reject punct substitution when original has punct

HOTFIX: Remove broad preposition/nasb regex rules — caused Hallucination 0%, +38 FP

Critical: Isolate grammar rules in try/except so regex fallback ALWAYS runs

Phase 13: Grammar SV/gender whitelist, preposition/nasb regex, pronoun-h guard

Phase 12: Fix 6 batches — grammar pipeline bypass, religious/structured protection, punct rearrangement, SV/gender agreement

fix: Apply hamza+ta-marbuta corrections AFTER validation steps to prevent reversion

Phase 11: Master Bug Fix — 23 fixes across 8 files

Phase 8: Fix all critical bugs from adversarial validation

feat: dialect-to-MSA conversion — backend API + frontend + Docker model cache

revert: restore backend/model files to cf07939 state, keep UI/UX changes only

UI: nav logo, bayyinah hover, quran icon, hero autocomplete shadow, clean tooltip, fix punctuation dup + hamza كان

fix: block grammar كان→كأن + punctuation mid-word split (الدفت.ر)

debug(punctuation): enhanced lock logging to show which owner blocks punctuation

feat(autocomplete): threshold=0.05 + max 3 suggestions

fix(autocomplete): replace beam search with sampling for diverse GPT-2 predictions

fix(autocomplete): GPT-2 now generates complete words, not BPE subword tokens

fix(autocomplete): true context awareness - GPT-2 now adds own candidates + cache key uses 5 words

feat(NLP-4): AutoComplete integration — hybrid bigram + GPT-2

fix(critical): stop spelling from corrupting correct words + fix pronoun agreement + reject hallucinations

fix: re-label grammar spelling fixes + handle prefix in hamza whitelist

fix: all model bugs — S1 S2 S3 G1 P1 (6 fixes across 4 files)

fix: Grammar Gradio client retry with exponential backoff (3 attempts, 2s/4s/8s)

fix: Grammar retry on rate-limit + cursor position after correction

feat: Pipeline Hardening v3.3 — stage ownership, punctuation safety, UUID migration

feat: NLP-3 PuncAra-v1 Integration — Local punctuation model - Created src/nlp/punctuation/ package (rules + service) - Extracted from PuncAra.py: preprocessing, postprocessing, chunking logic - PunctuationChecker: lazy-loaded EncoderDecoderModel from bayan10/PuncAra-v1 - Wired into /api/analyze as Step 3 (Spelling -> Grammar -> Punctuation) - Updated /api/punctuation standalone endpoint - Updated /api/health to report punctuation status - Dockerfile pre-downloads PuncAra-v1 weights during build - Increased gunicorn timeout to 300s for full pipeline

fix: Grammar rules false positive - الامتحان was incorrectly matched - Increased minimum stem length from 2 to 4 in fix_prepositions_advanced - Prevents root-level ان endings (الامتحان, الإنسان) from being treated as grammatical ون/ان

feat: NLP-2 Grammar Integration — dependency-aware pipeline - Add grammar_rules.py (ArabicGrammarGuard from Grammer_Rules.py with camel-tools) - Add grammar_service.py (lazy-loaded Gradio Client + rules pipeline) - Wire /api/grammar endpoint to real grammar service - Wire /api/analyze Step 2 to grammar (receives AraSpell output) - Update /api/health to report grammar status - Add gradio_client to requirements.txt - Add camel_data download to Dockerfile - Frontend unchanged (already supports grammar-error yellow highlighting)

fix: PDF dropdown visible + verify spelling context + araspell audit - Fix summary export dropdown clipping (overflow: visible + opens upward) - Verify: use_contextual=True in araspell_service.py (line 83) ✓ - Verify: ContextualCorrector fully initialized and used in pipeline ✓ - Verify: All araspell_rules.py classes used: AraSpellPostProcessor, ErrorClassifier, RulesBasedCorrector, OutputValidator, VocabularyManager, WordAligner, SplitMergeSpecialist, EditDistanceCorrector, ContextualCorrector, ArabicSpellChecker ✓ - Fix misleading comment about contextual=False

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