fix: add missing fields to oRPC provider and workspace schemas

The ProviderConfigInfoSchema was missing couponCodeSet (for Mux Gateway)
and aws (for Bedrock). oRPC strips fields not in the schema, so these
values were never reaching the frontend UI.

Also fixes workspace.fork to use FrontendWorkspaceMetadataSchema instead
of WorkspaceMetadataSchema, ensuring namedWorkspacePath is not stripped.

Author: ThomasK33

src/common/orpc/schemas/api.ts

@@ -14,11 +14,7 @@ import {
   TerminalSessionSchema,
 } from "./terminal";
 import { BashToolResultSchema, FileTreeNodeSchema } from "./tools";
-import {
-  FrontendWorkspaceMetadataSchema,
-  WorkspaceActivitySnapshotSchema,
-  WorkspaceMetadataSchema,
-} from "./workspace";
+import { FrontendWorkspaceMetadataSchema, WorkspaceActivitySnapshotSchema } from "./workspace";
 
 // --- API Router Schemas ---
 
@@ -39,10 +35,21 @@ export const tokenizer = {
 };
 
 // Providers
+export const AWSCredentialStatusSchema = z.object({
+  region: z.string().optional(),
+  bearerTokenSet: z.boolean(),
+  accessKeyIdSet: z.boolean(),
+  secretAccessKeySet: z.boolean(),
+});
+
 export const ProviderConfigInfoSchema = z.object({
   apiKeySet: z.boolean(),
   baseUrl: z.string().optional(),
   models: z.array(z.string()).optional(),
+  /** AWS-specific fields (only present for bedrock provider) */
+  aws: AWSCredentialStatusSchema.optional(),
+  /** Mux Gateway-specific fields */
+  couponCodeSet: z.boolean().optional(),
 });
 
 export const ProvidersConfigMapSchema = z.record(z.string(), ProviderConfigInfoSchema);
@@ -155,7 +162,7 @@ export const workspace = {
     output: z.discriminatedUnion("success", [
       z.object({
         success: z.literal(true),
-        metadata: WorkspaceMetadataSchema,
+        metadata: FrontendWorkspaceMetadataSchema,
         projectPath: z.string(),
       }),
       z.object({ success: z.literal(false), error: z.string() }),