feat(standards): drop the site CI variant + require changelog reconciliation before release

- Remove the push-triggered build-and-deploy-site pipeline and every "site"
  reference; Type B is now a single tag-triggered service pipeline
  (service-docker.yaml).
- Inventory now covers packages + the auth-server service only (repos.json
  11 -> 9; docs/mcp are no longer part of the standard).
- Versioning standard: reconcile [Unreleased] against the last tag before
  promoting, and always show proposed entries to the user for approval.
- Update registry.py compliance/release text and list_repos types, build.py
  component descriptions, and rebuild the MCP bundle + lib/wiki HTML.

build.py

@@ -371,7 +371,7 @@ _DRONE_COMPONENTS: list[dict[str, str]] = [
     {"kind": "drone-pypi", "path": "python-lib.yaml", "placeholder": "",
      "description": "Drone pipeline: build + publish a Python package to the private PyPI index."},
     {"kind": "drone-service", "path": "service-docker.yaml", "placeholder": "",
-     "description": "Drone pipeline: build, push, and deploy a Docker service or site."},
+     "description": "Drone pipeline: build, push, and deploy a Docker service."},
 ]
 
 
@@ -447,7 +447,7 @@ _RELEASE_COMPONENTS: list[dict[str, str]] = [
     {"kind": "changelog", "path": "CHANGELOG.md", "placeholder": "",
      "description": "Keep a Changelog skeleton: one [Unreleased] section + compare links."},
     {"kind": "version-file", "path": "VERSION", "placeholder": "",
-     "description": "Single-line SemVer source of truth for services and sites."},
+     "description": "Single-line SemVer source of truth for services."},
 ]