feat: enhance revision logic with fuzzy matching, dynamic material loading, and schema automation

- Improved RevisionComparator with fuzzy matching (RapidFuzz) and dynamic DB material loading
- Enhanced regex patterns for better size/material extraction
- Initialized Alembic for schema migrations and created baseline migration
- Added entrypoint.sh for automated migrations in Docker
- Fixed SyntaxError in fitting_classifier.py
- Updated test suite with new functionality tests

backend/app/services/fitting_classifier.py

@@ -253,17 +253,28 @@ def classify_fitting(dat_file: str, description: str, main_nom: str,
     is_instrument = any(kw in desc_upper for kw in instrument_keywords)
     
     if is_instrument:
-        fitting_type["category"] = "INSTRUMENT_FITTING"
-        if "SWAGELOK" in desc_upper: fitting_type["brand"] = "SWAGELOK"
+        fitting_type_result["category"] = "INSTRUMENT_FITTING"
+        if "SWAGELOK" in desc_upper: fitting_type_result["brand"] = "SWAGELOK"
         
         # Tube OD 추출 (예: 1/4", 6MM, 12MM)
         tube_match = re.search(r'(\d+(?:/\d+)?)\s*(?:\"|INCH|MM)\s*(?:OD|TUBE)', desc_upper)
         if tube_match:
-            fitting_type["tube_od"] = tube_match.group(0)
+            fitting_type_result["tube_od"] = tube_match.group(0)
 
     return {
         "category": "FITTING",
-        "fitting_type": fitting_type,
+        "fitting_type": fitting_type_result,
+        "connection_method": connection_result,
+        "pressure_rating": pressure_result,
+        "schedule": schedule_result,
+        "manufacturing": manufacturing_result,
+        "overall_confidence": calculate_fitting_confidence({
+            "material": material_result.get("confidence", 0),
+            "fitting_type": fitting_type_result.get("confidence", 0),
+            "connection": connection_result.get("confidence", 0),
+            "pressure": pressure_result.get("confidence", 0)
+        })
+    }
 
 
 def analyze_size_pattern_for_fitting_type(description: str, main_nom: str, red_nom: str = None) -> Dict: