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/nav.json

@@ -0,0 +1,130 @@
+[
+  {
+    "module": "openapi_first",
+    "resource": "doc://modules/openapi_first"
+  },
+  {
+    "module": "openapi_first.app",
+    "resource": "doc://modules/openapi_first.app"
+  },
+  {
+    "module": "openapi_first.binder",
+    "resource": "doc://modules/openapi_first.binder"
+  },
+  {
+    "module": "openapi_first.cli",
+    "resource": "doc://modules/openapi_first.cli"
+  },
+  {
+    "module": "openapi_first.client",
+    "resource": "doc://modules/openapi_first.client"
+  },
+  {
+    "module": "openapi_first.codegen",
+    "resource": "doc://modules/openapi_first.codegen"
+  },
+  {
+    "module": "openapi_first.codegen_routes",
+    "resource": "doc://modules/openapi_first.codegen_routes"
+  },
+  {
+    "module": "openapi_first.errors",
+    "resource": "doc://modules/openapi_first.errors"
+  },
+  {
+    "module": "openapi_first.loader",
+    "resource": "doc://modules/openapi_first.loader"
+  },
+  {
+    "module": "openapi_first.security",
+    "resource": "doc://modules/openapi_first.security"
+  },
+  {
+    "module": "openapi_first.templates",
+    "resource": "doc://modules/openapi_first.templates"
+  },
+  {
+    "module": "openapi_first.templates.crud_app",
+    "resource": "doc://modules/openapi_first.templates.crud_app"
+  },
+  {
+    "module": "openapi_first.templates.crud_app.data",
+    "resource": "doc://modules/openapi_first.templates.crud_app.data"
+  },
+  {
+    "module": "openapi_first.templates.crud_app.main",
+    "resource": "doc://modules/openapi_first.templates.crud_app.main"
+  },
+  {
+    "module": "openapi_first.templates.crud_app.routes",
+    "resource": "doc://modules/openapi_first.templates.crud_app.routes"
+  },
+  {
+    "module": "openapi_first.templates.crud_app.test_crud_app",
+    "resource": "doc://modules/openapi_first.templates.crud_app.test_crud_app"
+  },
+  {
+    "module": "openapi_first.templates.health_app",
+    "resource": "doc://modules/openapi_first.templates.health_app"
+  },
+  {
+    "module": "openapi_first.templates.health_app.main",
+    "resource": "doc://modules/openapi_first.templates.health_app.main"
+  },
+  {
+    "module": "openapi_first.templates.health_app.routes",
+    "resource": "doc://modules/openapi_first.templates.health_app.routes"
+  },
+  {
+    "module": "openapi_first.templates.model_app",
+    "resource": "doc://modules/openapi_first.templates.model_app"
+  },
+  {
+    "module": "openapi_first.templates.model_app.data",
+    "resource": "doc://modules/openapi_first.templates.model_app.data"
+  },
+  {
+    "module": "openapi_first.templates.model_app.main",
+    "resource": "doc://modules/openapi_first.templates.model_app.main"
+  },
+  {
+    "module": "openapi_first.templates.model_app.models",
+    "resource": "doc://modules/openapi_first.templates.model_app.models"
+  },
+  {
+    "module": "openapi_first.templates.model_app.routes",
+    "resource": "doc://modules/openapi_first.templates.model_app.routes"
+  },
+  {
+    "module": "openapi_first.templates.model_app.test_model_app",
+    "resource": "doc://modules/openapi_first.templates.model_app.test_model_app"
+  },
+  {
+    "module": "openapi_first.templates.vet_app",
+    "resource": "doc://modules/openapi_first.templates.vet_app"
+  },
+  {
+    "module": "openapi_first.templates.vet_app.data",
+    "resource": "doc://modules/openapi_first.templates.vet_app.data"
+  },
+  {
+    "module": "openapi_first.templates.vet_app.main",
+    "resource": "doc://modules/openapi_first.templates.vet_app.main"
+  },
+  {
+    "module": "openapi_first.templates.vet_app.models",
+    "resource": "doc://modules/openapi_first.templates.vet_app.models"
+  },
+  {
+    "module": "openapi_first.templates.vet_app.routes",
+    "resource": "doc://modules/openapi_first.templates.vet_app.routes"
+  },
+  {
+    "module": "openapi_first.templates.vet_app.sse",
+    "resource": "doc://modules/openapi_first.templates.vet_app.sse"
+  },
+  {
+    "module": "openapi_first.templates.vet_app.test_vet_app",
+    "resource": "doc://modules/openapi_first.templates.vet_app.test_vet_app"
+  }
+]