refactor(cli)!: namespace the profile and bundle manifests under dsh.profile and dsh.bundle

A profile manifest and a bundle manifest are different kinds and shared one
flat `dsh` section: `dsh.plugins` listed bundles (not plugins) and `dsh.patch`
declared a bundle's layer. Each kind now names its role — a bundle declares
`dsh.bundle.patch`, a profile declares `dsh.profile.bundles` — so a
package.json states which role it plays and the list name matches its contents.

`DEFAULT_PROFILE_PLUGINS` becomes `DEFAULT_PROFILE_BUNDLES`, and
`DshManifestSection` splits into `DshBundleManifest`/`DshProfileManifest`.
Pre-release: no compatibility shim; turtle-ui moved with it (bd5ff10).

scripts/check-workspace-constraints.ts

@@ -102,7 +102,7 @@ function workspaceManifests(): WorkspaceManifest[] {
 }
 
 const packageFileExtras: Readonly<Record<string, readonly string[]>> = {
-  // Profile bundles publish their dsh.patch layer beside the lib.
+  // Profile bundles publish their dsh.bundle.patch layer beside the lib.
   '@deepseek-ai/dsh-base': ['cordis.patch.yml'],
   '@deepseek-ai/dsh-web-app': ['cordis.patch.yml'],
   '@deepseek-ai/dsh-headless': ['cordis.patch.yml'],