feat(mcp): retire public connector registry

docs/plugin-authoring.md

@@ -55,6 +55,12 @@ An external product plugin can install a remote connector through the MCP
 plugin's public port. Declare `uses: ['mcpConnectors']`; do not import MCP
 storage, routes, OAuth helpers, or call the machine's own HTTP API.
 
+The MCP plugin continues to expose its normal machine-local configuration and
+status routes for clients that configure a connector manually. Harness does not
+publish an MCP marketplace, featured catalogue, or third-party registry-search
+route. A product that curates connectors owns that catalogue itself and declares
+the selected connector through this port.
+
 ```ts
 import { definePlugin, type McpConnectorPort } from '@hoshi/harness'
 

src/plugins/mcp/index.test.ts

@@ -29,6 +29,8 @@ describe('the public MCP connector port', () => {
       beginDcrAuthorization: expect.any(Function),
       status: expect.any(Function),
     })
+    expect(routes.get).toHaveBeenCalledWith('/mcp', expect.any(Function))
     expect(routes.post).toHaveBeenCalledWith('/mcp/:name/oauth', expect.any(Function))
+    expect(routes.get).not.toHaveBeenCalledWith('/mcp/registry', expect.any(Function))
   })
 })

src/plugins/mcp/index.ts

@@ -5,7 +5,6 @@ import addServer from './mcp.index.post.js'
 import updateServer from './mcp.name.patch.js'
 import reconnectServer from './mcp.name.reconnect.post.js'
 import removeServer from './mcp.name.delete.js'
-import registry from './mcp.registry.get.js'
 import oauthCallback from './mcp.oauth.callback.get.js'
 import startOauth from './mcp.name.oauth.post.js'
 import disconnectOauth from './mcp.name.oauth.delete.js'
@@ -80,7 +79,6 @@ export default definePlugin({
     host.routes.patch('/mcp/:name', updateServer)
     host.routes.post('/mcp/:name/reconnect', reconnectServer)
     host.routes.delete('/mcp/:name', removeServer)
-    host.routes.get('/mcp/registry', registry)
     /**
      *
      * OAuth for remote connectors. The callback is registered BEFORE `/mcp/:name`