Phase 7: serve the vet sample from the template tools and docs

- build.py: _TEMPLATE_COMPONENTS rewritten around the vet sample (53 kinds —
  per-resource slices, jobs, worked appointment_reminder family, tests);
  seed tokens dropped from the manifest ('sample: vet' instead)
- registry.py: get_app_component(kind) no longer renames item/example seeds;
  prompts and tool docs updated to 'copy a slice and adapt'
- templates/README.md, 01_build_recipe, 40_ui_admin, wiki/03 updated off the
  old seed scheme; repo inventory/config now exclude vet (docs move under
  standards; react/vet itself is deleted in a later phase)
- regenerated MCP bundle, vendored templates, and site output

standards/src/lib/94_repository_inventory.md

@@ -45,15 +45,14 @@ source is `package.json`; Drone file is `npm-lib.yaml` (tag-triggered).
 
 ---
 
-## Services & Apps (Type C)
+## Services (Type C)
 
 A container image pushed to the registry and run on the Docker host. Version
 source is the `VERSION` file; Drone file is `service-docker.yaml`.
 
-| Repo | Path | Type | Trigger | Docs |
-|------|------|------|---------|------|
-| `auth-server` | `auth-server` | service | tag | api, lib, wiki |
-| `vet` | `react/vet` | app | tag | lib, wiki |
+| Repo | Path | Trigger | Docs |
+|------|------|---------|------|
+| `auth-server` | `auth-server` | tag | api, lib, wiki |
 
 Tag-triggered and enforces `tag == VERSION`.
 
@@ -65,7 +64,7 @@ Tag-triggered and enforces `tag == VERSION`.
 |------|----------------|-----------|-------|
 | package (PyPI) | `pyproject.toml` | `CHANGELOG.md` | `python-lib.yaml` |
 | package (npm) | `package.json` | `CHANGELOG.md` | `npm-lib.yaml` |
-| service / app | `VERSION` | `CHANGELOG.md` | `service-docker.yaml` |
+| service | `VERSION` | `CHANGELOG.md` | `service-docker.yaml` |
 
 Every covered repository must be able to satisfy `tag == version`:
 the version file (never a commit id) is bumped in the release MR, the MR is