refactor(oauth): add typed OAuthRoutesConfig to ConstructiveOptions

Move OAuthRoutesConfig interface to graphql/types package and add oauth
property to ConstructiveOptions, removing the need for `(opts as any).oauth`
type assertion.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: theothersideofgod

graphql/server/src/middleware/oauth.ts

@@ -224,14 +224,6 @@ async function generateCrossOriginToken(
 // OAuth Routes
 // =============================================================================
 
-export interface OAuthRoutesConfig {
-  /** @deprecated baseUrl is now derived from request headers for multi-tenant support */
-  baseUrl?: string;
-  errorRedirectPath?: string;
-  allowSignup?: boolean;
-  requireVerifiedEmail?: boolean;
-}
-
 function getBaseUrl(req: Request): string {
   const protocol = req.protocol || 'http';
   const host = req.get('host') || 'localhost:3000';
@@ -240,7 +232,7 @@ function getBaseUrl(req: Request): string {
 
 export function createOAuthRoutes(opts: ConstructiveOptions): Router {
   const router = Router();
-  const oauthConfig = (opts as any).oauth as OAuthRoutesConfig | undefined;
+  const oauthConfig = opts.oauth;
 
   const errorRedirectPath = oauthConfig?.errorRedirectPath ?? '/auth/error';
   const allowSignup = oauthConfig?.allowSignup ?? true;

graphql/types/src/constructive.ts

@@ -20,6 +20,20 @@ import {
 } from './graphile';
 import { LlmOptions } from './llm';
 
+/**
+ * OAuth routes configuration
+ */
+export interface OAuthRoutesConfig {
+  /** @deprecated baseUrl is now derived from request headers for multi-tenant support */
+  baseUrl?: string;
+  /** Path to redirect on error (default: /auth/error) */
+  errorRedirectPath?: string;
+  /** Allow signup via OAuth (default: true) */
+  allowSignup?: boolean;
+  /** Require verified email for OAuth signup (default: true) */
+  requireVerifiedEmail?: boolean;
+}
+
 /**
  * GraphQL-specific options for Constructive
  */
@@ -59,6 +73,8 @@ export interface ConstructiveOptions extends PgpmOptions, ConstructiveGraphQLOpt
   jobs?: JobsConfig;
   /** LLM provider configuration (embeddings, chat, RAG) */
   llm?: LlmOptions;
+  /** OAuth routes configuration */
+  oauth?: OAuthRoutesConfig;
 }
 
 /**

graphql/types/src/index.ts

@@ -12,6 +12,7 @@ export {
 export {
   ConstructiveGraphQLOptions,
   ConstructiveOptions,
+  OAuthRoutesConfig,
   constructiveGraphqlDefaults,
   constructiveDefaults
 } from './constructive';