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

FIX-46: Expanded OOV cleanup with 4 new patterns

Disable edit-1 OOV cleanup (caused 3 regressions)

FIX-45: Upgrade _levenshtein to Damerau-Levenshtein distance

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

Fix FIX-42b: Allow first-letter changes when root lengths differ

FIX-43: Route bidirectional OOV→IV fixes through spelling guard

Revert FIX-42c: Grammar feminine ending guard was too aggressive

FIX-42: Multi-layer guards for spelling and grammar corruptions

FIX-41: Block spelling corrections that add trailing ا/ي/و to IV words

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

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

Audit fixes: narrow FIX-35 suffixes, raise FIX-37 threshold, remove duplicate sort

FIX-32b: Add missing reverse sort in applyAllSuggestions

FIX-37: Rule-based terminal period fallback for punctuation

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

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

FIX-32: Fix word duplication bug in website frontend

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

Refactor: Remove obsolete IVtoOOV filter to prevent False Negatives

Fix: Add missing dual and plural IVtoOOV bypass rules in app.py

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

Fix: Reorder Jaccard filter in app.py to run after evaluating grammar bypass rules

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

Fix: Strip trailing punctuation in grammar bypass rule to handle words at the end of sentences

Fix: Allow gender prefix swap (ي/ت) during feminine plural present tense bypass

Fix: Add bypass rule for present tense feminine plural to prevent IVtoOOV rejection

Fix: Preserve input punctuation during grammar correction

Cleanup pass 3: Delete debug_verdict.py, rewrite tasks/todo.md and src/README.md for v2.0

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 13: Fix spelling filter blind spots + eager model loading

Phase 12: Spelling pipeline integration + Benchmark integrity fixes

Phase 11: Inline telemetry in API response

Phase 11: Telemetry instrumentation + OffsetMapper tests

FIX-27: Grammar structured data + hallucination protection

FIX-26: Reject punct substitution when original has punct

FIX-25: Block grammar punct spacing (حالك؟→حالك ؟)

FIX-24: Block grammar model punct stripping (البلاد.→البلاد)

FIX-23: Block grammar model tanween removal + HF log fetcher

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

CRITICAL FIX: _DIRECTIONAL_BLOCKS was local scope → NameError in grammar diff filter

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

Hotfix: Revert pronoun-h guard to ته-only (was breaking ta_marbuta), add directional blocks for عمله/لسانه/بيته/كتابه