fixing examples and adding doc strings

mcp_docs/modules/openapi_first.templates.crud_app.test_crud_app.json

@@ -30,7 +30,7 @@
         "kind": "class",
         "path": "openapi_first.templates.crud_app.test_crud_app.OpenAPIClient",
         "signature": "<bound method Alias.signature of Alias('OpenAPIClient', 'openapi_first.client.OpenAPIClient')>",
-        "docstring": "OpenAPI-first HTTP client (httpx-based).\n\n- One callable per operationId\n- Explicit parameters (path, query, headers, body)\n- No implicit schema inference or mutation",
+        "docstring": "OpenAPI-first HTTP client (httpx-based).\n\nThis client derives all callable methods directly from an OpenAPI 3.x\nspecification. Each operationId becomes a method on the client\ninstance.\n\nDesign principles\n-----------------\n- One callable per operationId\n- Explicit parameters (path, query, headers, body)\n- No implicit schema inference or mutation\n- Returns raw httpx.Response objects\n- No response validation or deserialization\n\nParameters\n----------\nspec : dict\n    Parsed OpenAPI 3.x specification.\nbase_url : str | None\n    Base URL of the target service. If omitted, the first entry\n    in the OpenAPI `servers` list is used.\nclient : httpx.Client | None\n    Optional preconfigured httpx client instance.\n\nRaises\n------\nOpenAPIClientError\n    If:\n    - No servers are defined and base_url is not provided\n    - OpenAPI spec has no paths\n    - An operation is missing operationId\n    - Duplicate operationIds are detected\n    - Required path parameters are missing\n    - Required request body is missing\n\n Example\n-------\n```python\nfrom openapi_first import loader, client\n\nspec = loader.load_openapi(\"openapi.yaml\")\n\napi = client.OpenAPIClient(\n    spec=spec,\n    base_url=\"http://localhost:8000\",\n)\n\n# Call operationId: getUser\nresponse = api.getUser(\n    path_params={\"user_id\": 123}\n)\n\nprint(response.status_code)\nprint(response.json())\n\n# Call operationId: createUser\nresponse = api.createUser(\n    body={\"name\": \"Bob\"}\n)\n\nprint(response.status_code)\n```",
         "members": {
           "spec": {
             "name": "spec",