fix: vendor per-kind sites in the hub; drop stale blog docs

- collect.py: when a kind points at the shared site root, copy only the
  per-kind subdir (site/lib -> <repo>/lib) instead of the whole site, so
  stray single-site build output never leaks into the hub
- Purge stale collected artifacts (404.html, assets/, search/, sitemaps,
  objects.inv, duplicate mcp/) from every repo dir, matching the cleaned
  source site/ roots
- Refresh collected output from source repos, incl. the khata-app app
- Remove the vendored Blog API docs (config.yml entry + blog/) and its card

py-jwt/mcp/modules/jwtlib.models.common.json

@@ -1,85 +0,0 @@
-{
-  "module": "jwtlib.models.common",
-  "content": {
-    "path": "jwtlib.models.common",
-    "docstring": "# Summary\n\nCommon Pydantic mixins for authentication models.\n\nThis module provides reusable mixins for identity, password, and\naccount state. These mixes ensure consistency across internal\npersistence models and public-facing projection models.",
-    "objects": {
-      "BaseModel": {
-        "name": "BaseModel",
-        "kind": "alias",
-        "path": "jwtlib.models.common.BaseModel",
-        "signature": "<bound method Alias.signature of Alias('BaseModel', 'pydantic.BaseModel')>",
-        "docstring": null
-      },
-      "EmailStr": {
-        "name": "EmailStr",
-        "kind": "alias",
-        "path": "jwtlib.models.common.EmailStr",
-        "signature": "<bound method Alias.signature of Alias('EmailStr', 'pydantic.EmailStr')>",
-        "docstring": null
-      },
-      "Field": {
-        "name": "Field",
-        "kind": "alias",
-        "path": "jwtlib.models.common.Field",
-        "signature": "<bound method Alias.signature of Alias('Field', 'pydantic.Field')>",
-        "docstring": null
-      },
-      "IdentityMixin": {
-        "name": "IdentityMixin",
-        "kind": "class",
-        "path": "jwtlib.models.common.IdentityMixin",
-        "signature": "<bound method Class.signature of Class('IdentityMixin', 14, 37)>",
-        "docstring": "Mixin for entities with a username and email.\n\nAttributes:\n    username (str):\n        Unique username used for authentication and display.\n    email (Optional[EmailStr]):\n        Primary email address associated with the account.",
-        "members": {
-          "username": {
-            "name": "username",
-            "kind": "attribute",
-            "path": "jwtlib.models.common.IdentityMixin.username",
-            "signature": null,
-            "docstring": null
-          },
-          "email": {
-            "name": "email",
-            "kind": "attribute",
-            "path": "jwtlib.models.common.IdentityMixin.email",
-            "signature": null,
-            "docstring": null
-          }
-        }
-      },
-      "PasswordMixin": {
-        "name": "PasswordMixin",
-        "kind": "class",
-        "path": "jwtlib.models.common.PasswordMixin",
-        "signature": "<bound method Class.signature of Class('PasswordMixin', 40, 54)>",
-        "docstring": "Mixin for entities with a raw password field.\n\nAttributes:\n    password (str):\n        User password (minimum 6 characters).",
-        "members": {
-          "password": {
-            "name": "password",
-            "kind": "attribute",
-            "path": "jwtlib.models.common.PasswordMixin.password",
-            "signature": null,
-            "docstring": null
-          }
-        }
-      },
-      "ActiveStateMixin": {
-        "name": "ActiveStateMixin",
-        "kind": "class",
-        "path": "jwtlib.models.common.ActiveStateMixin",
-        "signature": "<bound method Class.signature of Class('ActiveStateMixin', 57, 71)>",
-        "docstring": "Mixin for entities with an active status flag.\n\nAttributes:\n    is_active (bool):\n        Indicates whether the account is active and allowed to\n        authenticate.",
-        "members": {
-          "is_active": {
-            "name": "is_active",
-            "kind": "attribute",
-            "path": "jwtlib.models.common.ActiveStateMixin.is_active",
-            "signature": null,
-            "docstring": null
-          }
-        }
-      }
-    }
-  }
-}