feat(precedent-library): add district and chair_name to edit form

Fields existed in DB and Precedent type but were missing from:
- PrecedentUpdateRequest (backend model)
- update_case_law allowed set (db layer)
- PrecedentPatch (frontend type)
- precedent-edit-sheet form state, inputs, and patch payload

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

mcp-server/src/legal_mcp/services/db.py

@@ -1985,7 +1985,7 @@ async def update_case_law(case_law_id: UUID, **fields) -> dict | None:
     allowed = {
         "case_number", "case_name", "court", "date", "practice_area", "appeal_subtype",
         "subject_tags", "summary", "headnote", "key_quote", "source_url",
-        "source_type", "precedent_level", "is_binding",
+        "source_type", "precedent_level", "is_binding", "district", "chair_name",
     }
     updates = {k: v for k, v in fields.items() if k in allowed}
     if not updates:

web-ui/src/components/precedents/precedent-edit-sheet.tsx

@@ -38,6 +38,8 @@ type FormState = {
   citation: string;
   case_name: string;
   court: string;
+  district: string;
+  chair_name: string;
   decision_date: string;
   practice_area: PracticeArea;
   appeal_subtype: string;
@@ -51,8 +53,8 @@ type FormState = {
 };
 
 const EMPTY: FormState = {
-  citation: "", case_name: "", court: "", decision_date: "",
+  citation: "", case_name: "", court: "", district: "", chair_name: "",
-  practice_area: "", appeal_subtype: "", source_type: "",
+  decision_date: "", practice_area: "", appeal_subtype: "", source_type: "",
   precedent_level: "", is_binding: true, subject_tags: "",
   summary: "", headnote: "", key_quote: "",
 };
@@ -75,6 +77,8 @@ export function PrecedentEditSheet({ caseLawId, onOpenChange }: Props) {
       citation: record.case_number || "",
       case_name: record.case_name || "",
       court: record.court || "",
+      district: record.district || "",
+      chair_name: record.chair_name || "",
       decision_date: record.date ? record.date.slice(0, 10) : "",
       practice_area: (record.practice_area || "") as PracticeArea,
       appeal_subtype: appealSubtypeLabel(record.appeal_subtype),
@@ -95,6 +99,8 @@ export function PrecedentEditSheet({ caseLawId, onOpenChange }: Props) {
       const patch: Record<string, unknown> = {
         case_name: form.case_name.trim(),
         court: form.court.trim(),
+        district: form.district.trim(),
+        chair_name: form.chair_name.trim(),
         practice_area: form.practice_area || undefined,
         appeal_subtype: form.appeal_subtype.trim(),
         source_type: form.source_type || undefined,
@@ -180,6 +186,18 @@ export function PrecedentEditSheet({ caseLawId, onOpenChange }: Props) {
                 <Input id="court" value={form.court}
                   onChange={(e) => setForm({ ...form, court: e.target.value })} />
               </div>
+              <div className="space-y-1">
+                <Label htmlFor="district">מחוז</Label>
+                <Input id="district" value={form.district}
+                  onChange={(e) => setForm({ ...form, district: e.target.value })}
+                  placeholder="ירושלים / תל אביב / מרכז" />
+              </div>
+              <div className="space-y-1">
+                <Label htmlFor="chair-name">יו"ר</Label>
+                <Input id="chair-name" value={form.chair_name}
+                  onChange={(e) => setForm({ ...form, chair_name: e.target.value })}
+                  placeholder="עו״ד דפנה תמיר" />
+              </div>
               <div className="space-y-1">
                 <Label htmlFor="date">תאריך</Label>
                 <Input id="date" type="date" value={form.decision_date}

web-ui/src/lib/api/precedent-library.ts

@@ -414,6 +414,8 @@ export type PrecedentPatch = Partial<{
   source_type: SourceType;
   precedent_level: string;
   is_binding: boolean;
+  district: string;
+  chair_name: string;
 }>;
 
 export function useUpdatePrecedent() {

web/app.py

@@ -4287,6 +4287,8 @@ class PrecedentUpdateRequest(BaseModel):
     source_type: str | None = None
     precedent_level: str | None = None
     is_binding: bool | None = None
+    district: str | None = None
+    chair_name: str | None = None
 
 
 class HalachaUpdateRequest(BaseModel):