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/paperclip_client.py

@@ -231,6 +231,21 @@ async def restore_project(case_number: str) -> dict:
         await conn.close()
 
 
+async def update_project_name(case_number: str, new_title: str) -> None:
+    """Update the Paperclip project name when a case title changes."""
+    project_name = f"ערר {case_number} — {new_title}"[:200]
+    conn = await asyncpg.connect(PAPERCLIP_DB_URL)
+    try:
+        await conn.execute(
+            "UPDATE projects SET name = $1, updated_at = now() WHERE name LIKE $2",
+            project_name, f"%{case_number}%",
+        )
+    except Exception:
+        logger.warning("Failed to update Paperclip project name for case %s", case_number)
+    finally:
+        await conn.close()
+
+
 async def _ensure_default_workspace(
     conn: asyncpg.Connection,
     project_id: str,