docs(vision): package READMEs, Model Experience, and the capability Agent Note

Document the four image-recognition packages and the vision group, register
the vision domain in the package index, add the capability decision as an
Agent Note, declare the invariants peer dep, and drop the unused agents
injection from the consumer.

Co-Authored-By: Claude <noreply@anthropic.com>

packages/bundle/image-recognition/README.md

@@ -0,0 +1,17 @@
+# @deepseek-ai/dsh-image-recognition-bundle
+
+Opt-in image-recognition bundle for a profile. Its `cordis.patch.yml` mounts the
+capability seam (`@deepseek-ai/dsh-image-recognition`), the configurable HTTP
+provider (`@deepseek-ai/dsh-image-recognition-http`), and the model-facing
+consumer (`@deepseek-ai/dsh-tool-image-recognition`).
+
+The bundle is **not** in any default profile's bundles list. Enable it per
+profile by adding this package to the profile's `dsh.profile.bundles` (or
+`dsh plugin --profile <name> add @deepseek-ai/dsh-image-recognition-bundle`),
+then configure the endpoint and key in the Plugins settings page
+(`image-recognition` card).
+
+## Known Limitations and Deferred Work
+
+- Requires the user to supply a vision provider endpoint and key; recognition is
+  unavailable until both are configured.