feat: fix wizard step-skip bug + extend case edit with all fields + Paperclip title sync

- Fix keyboard navigation bug: React was reusing the submit button DOM element
  when transitioning "הבא" → "צור תיק", retaining focus and causing Enter to
  auto-submit step 3. Added key props to force element replacement.

- CaseEditDialog now covers all wizard fields: appellants, respondents,
  property_address, permit_number (in addition to existing title, subject,
  hearing_date, expected_outcome, notes).

- When case title changes, Paperclip project name is updated in background
  via new update_project_name() in paperclip_client.py.

- Extended CaseUpdateRequest, case_update MCP tool, and caseUpdateSchema
  to carry the new fields end-to-end.

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

web-ui/src/lib/schemas/case.ts

@@ -89,6 +89,14 @@ export const caseUpdateSchema = z.object({
     .enum(expectedOutcomes.map((o) => o.value) as [string, ...string[]])
     .optional(),
   status:           z.string().optional(),
+  appellants: z
+    .array(z.string().trim().min(1).refine((v) => hebrewPartyRe.test(v), "שם לא תקין"))
+    .optional(),
+  respondents: z
+    .array(z.string().trim().min(1).refine((v) => hebrewPartyRe.test(v), "שם לא תקין"))
+    .optional(),
+  property_address: z.string().trim().max(200).optional(),
+  permit_number:    z.string().trim().max(100).optional(),
 });
 
 export type CaseUpdateInput = z.infer<typeof caseUpdateSchema>;