Add outcome-aware drafting, lessons system, and improved style analysis

- Add expected_outcome field to cases (rejection/partial/full/betterment_levy)
- New lessons.py module with golden ratios, templates, and drafting guidance per outcome type
- Style analyzer now uses Opus with full decision text (no truncation), with multi-pass fallback for large corpora
- Drafting tool provides outcome-specific templates, section guidance, and ratio comments
- Improved JSON extraction with bracket-matching fallback

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

mcp-server/src/legal_mcp/tools/cases.py

@@ -22,6 +22,7 @@ async def case_create(
     committee_type: str = "ועדה מקומית",
     hearing_date: str = "",
     notes: str = "",
+    expected_outcome: str = "",
 ) -> str:
     """יצירת תיק ערר חדש.
 
@@ -36,6 +37,7 @@ async def case_create(
         committee_type: סוג הוועדה (ברירת מחדל: ועדה מקומית)
         hearing_date: תאריך דיון (YYYY-MM-DD)
         notes: הערות
+        expected_outcome: תוצאה צפויה (rejection/partial_acceptance/full_acceptance/betterment_levy)
     """
     from datetime import date as date_type
 
@@ -54,6 +56,7 @@ async def case_create(
         committee_type=committee_type,
         hearing_date=h_date,
         notes=notes,
+        expected_outcome=expected_outcome,
     )
 
     # Initialize git repo for the case
@@ -122,6 +125,7 @@ async def case_update(
     hearing_date: str = "",
     decision_date: str = "",
     tags: list[str] | None = None,
+    expected_outcome: str = "",
 ) -> str:
     """עדכון פרטי תיק.
 
@@ -134,6 +138,7 @@ async def case_update(
         hearing_date: תאריך דיון (YYYY-MM-DD)
         decision_date: תאריך החלטה (YYYY-MM-DD)
         tags: תגיות
+        expected_outcome: תוצאה צפויה (rejection/partial_acceptance/full_acceptance/betterment_levy)
     """
     from datetime import date as date_type
 
@@ -156,6 +161,8 @@ async def case_update(
         fields["decision_date"] = date_type.fromisoformat(decision_date)
     if tags is not None:
         fields["tags"] = tags
+    if expected_outcome:
+        fields["expected_outcome"] = expected_outcome
 
     updated = await db.update_case(UUID(case["id"]), **fields)