* feat(plugins): support the Agent Plugins bundle format
* docs(plugins): document the Agent Plugins bundle format
* test(agents): preserve agent bundle runtime discovery
* fix(plugins): isolate Agent Plugins data-dir failures and align MCP support reporting
* docs(plugins): list Agent Plugins in the canonical plugin-format guides
* fix(plugins): gate Agent Plugins detection on schema, pure inspection, root-relative cwd
* fix(plugins): record Agent Plugins data-dir ownership explicitly
* docs(plugins): cover Agent Plugins in the CLI install detection guide
* fix(plugins): carry Agent Plugins data-dir and transport contracts through external MCP projections
Peter Steinberger