Adds schema and validation script, for checking otuput

lib/validate.py

@@ -0,0 +1,35 @@
+import json
+import os
+import sys
+from jsonschema import validate, ValidationError
+
+def load_json_file(file_path):
+    with open(file_path, 'r') as file:
+        return json.load(file)
+
+def main():
+    try:
+        script_dir = os.path.dirname(os.path.abspath(__file__))
+
+        schema_file = os.path.join(script_dir, '..', 'Schema.json')
+        templates_file = os.path.join(script_dir, '..', 'templates.json')
+
+        schema = load_json_file(schema_file)
+        templates = load_json_file(templates_file)
+        
+        validate(instance=templates, schema=schema)
+        
+        print('✅ templates.json is valid against the schema')
+
+    except ValidationError as ve:
+        print('Validation error:', ve.message)
+        sys.exit(1)
+    except FileNotFoundError as fnfe:
+        print(f'File not found error: {fnfe}')
+        sys.exit(1)
+    except json.JSONDecodeError as jde:
+        print(f'JSON decoding error: {jde}')
+        sys.exit(1)
+
+if __name__ == '__main__':
+    main()