v3.1: Fix 7-8 — party attribution scoped to sentence, reject >40 char strings

obligations.py

@@ -120,18 +120,22 @@ def extract_obligations(text):
         if not found_types:
             continue
 
-        # Extract party
+        # Extract party (Fix 8: scope to sentence only, reject >40 char strings)
         party = "Unknown"
-        for pp in PARTY_PATTERNS:
-            m = re.search(pp, sentence)
-            if m:
-                party = m.group(0).strip()
-                break
-
-        # Try to determine which party has the obligation based on sentence structure
+        # First try structured direction detection
         obligation_direction = _detect_obligation_direction(sentence)
         if obligation_direction:
             party = obligation_direction
+        else:
+            # Fallback to pattern matching within the sentence
+            for pp in PARTY_PATTERNS:
+                m = re.search(pp, sentence)
+                if m:
+                    candidate = m.group(0).strip()
+                    # Fix 8: Reject party strings >40 chars (header bleed-through)
+                    if len(candidate) <= 40:
+                        party = candidate
+                    break
 
         # Extract timeframe
         deadline = "Not specified"