feat(profiles): add the ACP application bundle

Introduce @deepseek-ai/dsh-acp-app as the thin application layer for the built-in acp profile. It contributes only the ACP protocol bridge and profile metadata; dsh-base remains the single owner of shared agent composition, providers, persistence, permissions, and tools.

Wire the bundle into CLI resolution, catalogs, workspace configuration, and built-bin coverage. The focused bundle and startup tests prove that base plus acp-app exposes automation sessions while keeping stdout reserved for ACP JSON-RPC.

tsconfig.host.json

@@ -257,6 +257,7 @@
     { "path": "./packages/test-support/agent-loop-testkit" },
     { "path": "./packages/acp/acp" },
     { "path": "./packages/examples/acp-demo" },
+    { "path": "./packages/bundle/acp-app" },
     { "path": "./packages/bundle/base" },
     { "path": "./packages/bundle/headless" },
     { "path": "./packages/bundle/sdk-app" },