improvement(self-host): simplify capability setup configuration (#6230)

* feat(self-host): add capability-aware setup

* fix(self-host): preserve capability compatibility

* fix(copilot): honor preview availability server-side

* improvement(self-host): centralize capability resolution

* fix(self-host): preserve integration availability paths

* fix(testing): align capability-aware config mocks

* improvement(self-host): simplify capability setup configuration

* fix(setup): preserve unowned storage overrides

* fix(self-host): reconcile storage and allowlists

* fix(integrations): preserve connect deep links

.github/CONTRIBUTING.md

@@ -316,7 +316,7 @@ If you prefer not to use Docker or Dev Containers. **All commands run from the r
    ```bash
    bun run type-check   # TypeScript across every workspace
    bun run lint:check   # Biome lint across every workspace
-   bun run test         # Vitest across every workspace
+   bun run test         # Setup CLI Bun tests, then Vitest across every workspace
    ```
 
 ### Email Template Development

.github/workflows/test-build.yml

@@ -159,6 +159,9 @@ jobs:
       - name: Verify generated tool metadata is in sync
         run: bun run tool-metadata:check
 
+      - name: Verify integration deployment metadata is in sync
+        run: bun run integration-catalog:check
+
       - name: Verify skill projections are in sync
         run: bun run skills:check
 
@@ -183,8 +186,8 @@ jobs:
       - name: Install ripgrep
         run: command -v rg || (sudo apt-get update && sudo apt-get install -y ripgrep)
 
-      # Named for what it does: `bun run test` is `vitest run`, with no
-      # `--coverage`. See the Codecov note below.
+      # Runs the setup CLI's Bun tests plus each workspace's Vitest suite,
+      # without `--coverage`. See the Codecov note below.
       - name: Run tests
         env:
           NODE_OPTIONS: '--no-warnings --max-old-space-size=8192'