chore: merge main into cw/small-change-flow

Integrates main branch changes (headquarters dashboard, task retry count,
agent prompt persistence, remote sync improvements) with the initiative's
errand agent feature. Both features coexist in the merged result.

Key resolutions:
- Schema: take main's errands table (nullable projectId, no conflictFiles,
  with errandsRelations); migrate to 0035_faulty_human_fly
- Router: keep both errandProcedures and headquartersProcedures
- Errand prompt: take main's simpler version (no question-asking flow)
- Manager: take main's status check (running|idle only, no waiting_for_input)
- Tests: update to match removed conflictFiles field and undefined vs null

apps/web/src/components/RegisterProjectDialog.tsx

@@ -10,6 +10,7 @@ import {
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
+import { Loader2 } from "lucide-react";
 import { toast } from "sonner";
 import { trpc } from "@/lib/trpc";
 
@@ -27,13 +28,20 @@ export function RegisterProjectDialog({
   const [defaultBranch, setDefaultBranch] = useState("main");
   const [error, setError] = useState<string | null>(null);
 
+  const utils = trpc.useUtils();
+
   const registerMutation = trpc.registerProject.useMutation({
     onSuccess: () => {
       onOpenChange(false);
       toast.success("Project registered");
+      void utils.listProjects.invalidate();
     },
     onError: (err) => {
-      setError(err.message);
+      if (err.data?.code === "INTERNAL_SERVER_ERROR") {
+        setError("Failed to clone repository. Check the URL and try again.");
+      } else {
+        setError(err.message);
+      }
     },
   });
 
@@ -109,7 +117,14 @@ export function RegisterProjectDialog({
               Cancel
             </Button>
             <Button type="submit" disabled={!canSubmit}>
-              {registerMutation.isPending ? "Registering..." : "Register"}
+              {registerMutation.isPending ? (
+                <>
+                  <Loader2 className="animate-spin mr-2 h-4 w-4" />
+                  Cloning repository…
+                </>
+              ) : (
+                "Register"
+              )}
             </Button>
           </DialogFooter>
         </form>