perf(rpc): stop the dispatcher importing every RPC method by default (#39669)

* perf(rpc): stop the dispatcher importing every RPC method by default

Callers pass the method list. A test that builds a dispatcher no longer loads
the full method registry, cutting the dispatcher's import graph from ~4k to
~550 modules.

* chore(lint): keep the RPC dispatcher and plugin RPC off the method registry

---------

Co-authored-by: OrcaWin <293788423+OrcaWin@users.noreply.github.com>

src/main/plugins/plugin-runtime-binding.ts

@@ -7,6 +7,7 @@ import { installPluginHookRunner } from './hooks/plugin-hook-participants'
 import { installPluginResidentWorkerWarmer } from './workers/plugin-resident-worker'
 import type { OrcaRuntimeService } from '../runtime/orca-runtime'
 import { pluginRuntimeRpc } from './plugin-runtime-rpc'
+import type { DispatcherOptions } from '../runtime/rpc/dispatcher'
 import type { PluginRuntimeRpc } from './workers/plugin-host-workspace-method-bindings'
 import {
   pluginTerminalTitle,
@@ -47,10 +48,11 @@ export function pluginRuntimeDelegate(
 export function bindPluginRuntime(
   service: PluginService,
   runtime: OrcaRuntimeService,
-  hookServer: { getStatusSnapshot(): readonly PluginAgentStatusRow[] }
+  hookServer: { getStatusSnapshot(): readonly PluginAgentStatusRow[] },
+  methods: DispatcherOptions['methods']
 ): PluginRuntimeDelegate {
   const statuses = () => hookServer.getStatusSnapshot()
-  const delegate = pluginRuntimeDelegate(runtime, statuses, pluginRuntimeRpc(runtime))
+  const delegate = pluginRuntimeDelegate(runtime, statuses, pluginRuntimeRpc(runtime, methods))
   service.setRuntimeDelegate(delegate)
   installPluginHookRunner(service, runtime)
   installPluginResidentWorkerWarmer(service)

src/main/plugins/plugin-runtime-rpc.ts

@@ -19,11 +19,11 @@ export class PluginRuntimeRpcError extends Error {
  */
 export function pluginRuntimeRpc(
   runtime: OrcaRuntimeService,
-  methods?: DispatcherOptions['methods']
+  methods: DispatcherOptions['methods']
 ): PluginRuntimeRpc {
   let dispatcher: RpcDispatcher | null = null
   return async (method, params, options = {}) => {
-    dispatcher ??= new RpcDispatcher({ runtime, ...(methods ? { methods } : {}) })
+    dispatcher ??= new RpcDispatcher({ runtime, methods })
     // The dispatcher maps a throw to an error answer; keep the original so its code reaches the plugin.
     let refusal: unknown = null
     const response = await dispatcher.dispatch(