Add guild config JSON schema

Author: NMertsch

.pre-commit-config.yaml

@@ -28,3 +28,11 @@ repos:
         language: python
         pass_filenames: false
         require_serial: true
+
+      - id: generate-json-schema
+        name: generate json schema
+        entry: uv run --active scripts/update-json-schema.py
+        language: system
+        types: [python]
+        pass_filenames: false
+        require_serial: true