fix: wait for workspace policy before creation

frontend/src/workspaces/drafts.ts

@@ -9,6 +9,44 @@ export interface WorkspaceDraft {
   updatedAt: string;
 }
 
+let pendingPolicy: { workspaceId: string; promise: Promise<void>; resolve: () => void } | undefined;
+let failedPolicy: { workspaceId: string; error: Error } | undefined;
+
+/** In-memory handoff between the footer's policy query and all session entry points. */
+export const workspacePolicyGate = {
+  begin(workspaceId: string): void {
+    if (pendingPolicy?.workspaceId === workspaceId) return;
+    if (failedPolicy?.workspaceId === workspaceId) failedPolicy = undefined;
+    let resolve!: () => void;
+    const promise = new Promise<void>((onResolve) => {
+      resolve = onResolve;
+    });
+    pendingPolicy = { workspaceId, promise, resolve };
+  },
+
+  resolve(workspaceId: string): void {
+    if (pendingPolicy?.workspaceId === workspaceId) {
+      pendingPolicy.resolve();
+      pendingPolicy = undefined;
+    }
+    if (failedPolicy?.workspaceId === workspaceId) failedPolicy = undefined;
+  },
+
+  reject(workspaceId: string): void {
+    if (pendingPolicy?.workspaceId !== workspaceId) return;
+    pendingPolicy.resolve();
+    pendingPolicy = undefined;
+    failedPolicy = { workspaceId, error: new Error("Selected workspace policy could not be loaded.") };
+  },
+
+  waitFor(workspaceId: string | undefined): Promise<void> {
+    const failed = failedPolicy;
+    if (failed && failed.workspaceId === workspaceId) return Promise.reject(failed.error);
+    const pending = pendingPolicy;
+    return pending && pending.workspaceId === workspaceId ? pending.promise : Promise.resolve();
+  },
+};
+
 const PREFIX = "thothii.workspace-registry.v1";
 const DRAFT_PREFIX = `${PREFIX}.draft.`;