REVERT FIX-48: ه→ة pass caused 12 regressions (30% → revert to 54%)

The ه→ة pass converted الصغيره→الصغيرة BEFORE the grammar model
could decide if gender should change (الصغيره→الصغير for masculine).
The grammar model needs to see the original ه form to make correct
gender agreement decisions.

FIX-49 (trailing و in IV→IV guard) is preserved — only FIX-48 reverted.
Tests: 39 passing.

src/app.py

@@ -2109,48 +2109,11 @@ def analyze_text():
         # ── FIX-07: Religious text already detected above (before spelling) ──
         # _is_religious_text was set earlier to skip ALL stages for sacred text
 
-        # ── FIX-48: Dedicated ه→ة pass (runs on ALL words, not just OOV) ──
-        # Words like الحكومه and الشركه are IV in BERT vocab, so OOV cleanup
-        # skips them. This pass converts ه→ة when the ة form is also IV,
-        # preferring standard orthography.
-        if not _is_religious_text:
-          try:
-            from nlp.spelling.araspell_service import get_spelling_model
-            _hata_checker = get_spelling_model()
-            _hata_text = ctx.current_text
-            _hata_words = _hata_text.split()
-            _hata_changed = False
-            _hata_result = []
-            # Words that genuinely end in ه (not ة)
-            _PROTECTED_HA = {
-                'الله', 'لله', 'فيه', 'عليه', 'منه', 'به', 'له', 'إليه',
-                'وجه', 'نزه', 'سفه', 'فقه', 'نبه', 'شبه', 'مكره', 'تنبه',
-                'اتجه', 'توجه', 'تشابه', 'وفيه', 'وعليه', 'ومنه', 'وله',
-                'دراسته', 'دراستها', 'حياته', 'حياتها',
-            }
-            _CONSONANTS = set('بتثجحخدذرزسشصضطظعغفقكلمنهوي')
-            for _hw_idx, _hw in enumerate(_hata_words):
-                _hw_clean = _hw.rstrip('.،؛؟!?!')
-                if (len(_hw_clean) >= 4 and _hw_clean.endswith('ه')
-                        and _hw_clean not in _PROTECTED_HA
-                        and _hw_clean[-2] in _CONSONANTS):
-                    _ta_cand = _hw_clean[:-1] + 'ة'
-                    if _hata_checker.vocab_manager.is_iv(_ta_cand):
-                        _punct_suffix = _hw[len(_hw_clean):]
-                        logger.info(
-                            f"[HA-TA] ه→ة fix: '{_hw}'→'{_ta_cand}{_punct_suffix}'"
-                        )
-                        _hata_result.append(_ta_cand + _punct_suffix)
-                        _hata_changed = True
-                        continue
-                _hata_result.append(_hw)
-            if _hata_changed:
-                _hata_new = ' '.join(_hata_result)
-                logger.info(f"[HA-TA] Applied: '{_hata_text[:60]}' → '{_hata_new[:60]}'")
-                ctx.mutate_text(_hata_new, OffsetMapper)
-                current_text = ctx.current_text
-          except Exception as e:
-            logger.warning(f"[HA-TA] Failed: {type(e).__name__}: {e}")
+
+        # ── FIX-48: DISABLED — Caused 12 regressions ──
+        # The ه→ة pass converted الصغيره→الصغيرة BEFORE the grammar model
+        # could decide if gender should change (الصغيره→الصغير for masculine).
+        # The grammar model needs to see the original ه form.
 
         # ── FIX-03: Structured content protection ──
         # Protect URLs, emails, dates, code etc. from grammar model destruction