fix: prevent JSONB double-encoding on methodology save

Pass req.value directly to asyncpg instead of json.dumps(req.value).
When a Python string was passed with ::jsonb, asyncpg encoded it as a
JSONB string (not an array), causing the frontend spread operator to
split it into individual characters — one textarea per character.

Also fix typo in DISCUSSION_RULES default: "אסה" → "מאסה".

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/app.py

@@ -3095,11 +3095,14 @@ async def api_update_methodology(category: str, key: str, req: MethodologyUpdate
             raise HTTPException(422, "content_checklists value must be a non-empty string")
 
     pool = await db.get_pool()
+    # Pass req.value directly — asyncpg serializes Python list/dict to JSONB.
+    # json.dumps() caused double-encoding: string passed to ::jsonb became a JSONB string,
+    # not a JSONB array, making the frontend spread it as individual chars.
     await pool.execute(
         "INSERT INTO appeal_type_rules (id, appeal_type, rule_category, rule_key, rule_value) "
         "VALUES (gen_random_uuid(), '_global', $1, $2, $3::jsonb) "
         "ON CONFLICT (appeal_type, rule_category, rule_key) DO UPDATE SET rule_value = $3::jsonb",
-        category, key, json.dumps(req.value, ensure_ascii=False),
+        category, key, req.value,
     )
 
     return {"key": key, "value": req.value, "is_override": True}