feat: full-stack MCP surface — client template, npm CI, 13 repos

- build.py: vendor templates/client into mcp/templates/client with
  client.json manifest (16 kinds); register drone-npm as a third CI shape
  (types: pypi/npm/docker); root *.py stale doc numbers fixed
- registry.py: registry://client resource + list_client_components /
  get_client_component / get_client_template tools; build prompt gains the
  client scaffold step (docs://modules/ui_admin); compliance prompt covers
  npm packages; drone docs describe all three shapes
- repos.json (+mcp): doc-weaver, react-auth, react-openapi (npm Type B,
  package.json version source), vet (app Type C, VERSION)
- docs: 90_drone_pipelines gains Type B npm section; 91_versioning covers
  package.json as a version source; 94_repository_inventory gains the npm
  package table and services/apps Type C; lib index updated

Verified: bundle regen (24 modules, client 16, drone 3, repos 13); registry
client readers exercised against the vendored bundle.

standards/mcp/templates/client/index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>App Title</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.jsx"></script>
+  </body>
+</html>