feat(adapters): external adapter plugin system with dynamic UI parser

- Plugin loader: install/reload/remove/reinstall external adapters
  from npm packages or local directories
- Plugin store persisted at ~/.paperclip/adapter-plugins.json
- Self-healing UI parser resolution with version caching
- UI: Adapter Manager page, dynamic loader, display registry
  with humanized names for unknown adapter types
- Dev watch: exclude adapter-plugins dir from tsx watcher
  to prevent mid-request server restarts during reinstall
- All consumer fallbacks use getAdapterLabel() for consistent display
- AdapterTypeDropdown uses controlled open state for proper close behavior
- Remove hermes-local from built-in UI (externalized to plugin)
- Add docs for external adapters and UI parser contract

packages/plugins/sdk/src/worker-rpc-host.ts

@@ -610,8 +610,8 @@ export function startWorkerRpcHost(options: WorkerRpcHostOptions): WorkerRpcHost
           return callHost("issues.listComments", { issueId, companyId });
         },
 
-        async createComment(issueId: string, body: string, companyId: string) {
-          return callHost("issues.createComment", { issueId, body, companyId });
+        async createComment(issueId: string, body: string, companyId: string, options?: { authorAgentId?: string }) {
+          return callHost("issues.createComment", { issueId, body, companyId, authorAgentId: options?.authorAgentId });
         },
 
         documents: {