feat: serve docs flat at /<repo>/ with no redirects

- collect.py copies each repo's built site contents directly to a
  top-level <repo>/ dir (was libs|apis|wiki/<repo>/site nesting)
- nginx uses `index index.html lib/index.html api/index.html` so
  /dagpipe/ -> lib/index.html, /auth-server/ -> api/index.html are
  served internally with no redirects
- _index regenerates links against the flat layout
  (/dagpipe/lib/, /auth-server/api/, /mongo-ops/, /blog/...)
- config.yml static entries point at vendored blog/ + media-manager/
- Dockerfile copies per-repo dirs flat into the nginx html root
- removed stale libs/, apis/, wiki/, tutorials/ category trees

openapi-first/mcp/modules/openapi_first.codegen.json

@@ -0,0 +1,51 @@
+{
+  "module": "openapi_first.codegen",
+  "content": {
+    "path": "openapi_first.codegen",
+    "docstring": "# Summary\n\nCore logic for generating Python source code from OpenAPI specifications.\n\nThis module provides reusable utilities for code generation, specifically\ngenerating Pydantic models and route handler stubs from OpenAPI 3.x schema\ndefinitions.",
+    "objects": {
+      "Path": {
+        "name": "Path",
+        "kind": "alias",
+        "path": "openapi_first.codegen.Path",
+        "signature": "<bound method Alias.signature of Alias('Path', 'pathlib.Path')>",
+        "docstring": null
+      },
+      "InputFileType": {
+        "name": "InputFileType",
+        "kind": "alias",
+        "path": "openapi_first.codegen.InputFileType",
+        "signature": "<bound method Alias.signature of Alias('InputFileType', 'datamodel_code_generator.InputFileType')>",
+        "docstring": null
+      },
+      "PythonVersion": {
+        "name": "PythonVersion",
+        "kind": "alias",
+        "path": "openapi_first.codegen.PythonVersion",
+        "signature": "<bound method Alias.signature of Alias('PythonVersion', 'datamodel_code_generator.PythonVersion')>",
+        "docstring": null
+      },
+      "generate": {
+        "name": "generate",
+        "kind": "alias",
+        "path": "openapi_first.codegen.generate",
+        "signature": "<bound method Alias.signature of Alias('generate', 'datamodel_code_generator.generate')>",
+        "docstring": null
+      },
+      "generate_routes": {
+        "name": "generate_routes",
+        "kind": "function",
+        "path": "openapi_first.codegen.generate_routes",
+        "signature": "<bound method Alias.signature of Alias('generate_routes', 'openapi_first.codegen_routes.generate_routes')>",
+        "docstring": "Generate route handler stubs from an OpenAPI specification.\n\nCreates one ``<resource>.py`` file per resource in *output_dir*.\nResources are derived from the first path segment (e.g. ``/pets``\nand ``/pets/{id}`` both group under ``pets``).\n\nArgs:\n    spec_path:\n        Path to the OpenAPI specification file (YAML or JSON).\n    output_dir:\n        Directory where the generated route files are written.\n        Created automatically if it does not exist.\n    use_models:\n        If ``True``, import Pydantic models from *models_module*\n        for request-body schemas referenced via ``$ref``.\n    models_module:\n        Dotted Python module path from which to import models\n        (e.g. ``\"models\"``, ``\"app.models\"``).\n\nReturns:\n    list[Path]:\n        Absolute paths of every generated route file.\n\nRaises:\n    OpenAPISpecLoadError:\n        If the spec cannot be loaded or validated.\n    ValueError:\n        If any operation is missing ``operationId``."
+      },
+      "generate_models": {
+        "name": "generate_models",
+        "kind": "function",
+        "path": "openapi_first.codegen.generate_models",
+        "signature": "<bound method Function.signature of Function('generate_models', 22, 51)>",
+        "docstring": "Generate Pydantic models from an OpenAPI specification.\n\nArgs:\n    spec_path (Path):\n        Path to the OpenAPI specification file (YAML or JSON).\n    output_path (Path):\n        Path where the generated Python code should be written.\n    pydantic_version (int, optional):\n        The Pydantic version to target (1 or 2). Defaults to 2.\n\nNotes:\n    **Reusability:**\n        This function is designed to be used by the CLI and can be\n        exposed as an MCP tool without modification."
+      }
+    }
+  }
+}