refactor: Enforce strict typed JsonSchema for all MCP tools

fix_writer.py

@@ -0,0 +1,9 @@
+import re
+
+with open("server/src/search.rs", "r", encoding="utf-8") as f:
+    content = f.read()
+
+content = content.replace("let writer = self.writer.lock().unwrap();\n        writer.commit()?;", "let mut writer = self.writer.lock().unwrap();\n        writer.commit()?;")
+
+with open("server/src/search.rs", "w", encoding="utf-8") as f:
+    f.write(content)