feat: add OMP runtime support

src/server/sessions/authService.ts

@@ -1,3 +1,4 @@
+import { join } from "node:path";
 import { AuthStorage, ModelRegistry } from "@earendil-works/pi-coding-agent";
 import type { AuthProvidersResponse, AuthType, OAuthFlowState } from "../../shared/apiTypes.js";
 import { getLoginProviderOptions, getLogoutProviderOptions } from "./authProviderOptions.js";
@@ -11,17 +12,23 @@ type AuthChangeListener = (change: AuthChange) => void;
 type ModelRegistryInstance = ReturnType<typeof ModelRegistry.create>;
 
 export interface AuthServiceDependencies {
+  agentDir?: string;
   modelRegistry?: ModelRegistryInstance;
   authFlows?: OAuthLoginFlowService;
 }
 
+export function createModelRegistryForAgentDir(agentDir: string): ModelRegistryInstance {
+  const authStorage = AuthStorage.create(join(agentDir, "auth.json"));
+  return ModelRegistry.create(authStorage, join(agentDir, "models.json"));
+}
+
 export class AuthService {
   readonly modelRegistry: ModelRegistryInstance;
   private readonly authFlows: OAuthLoginFlowService;
   private readonly listeners = new Set<AuthChangeListener>();
 
   constructor(deps: AuthServiceDependencies = {}) {
-    this.modelRegistry = deps.modelRegistry ?? ModelRegistry.create(AuthStorage.create());
+    this.modelRegistry = deps.modelRegistry ?? (deps.agentDir === undefined ? ModelRegistry.create(AuthStorage.create()) : createModelRegistryForAgentDir(deps.agentDir));
     this.authFlows = deps.authFlows ?? new OAuthLoginFlowService();
   }