feat: finish register receiving and authority routing

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a023c0-a0a3-7c03-b395-5a0d2757214d

src/repo_manager/commands/scaffold.py

@@ -4,12 +4,12 @@ from __future__ import annotations
 
 import uuid
 from dataclasses import dataclass
-from datetime import date
 from pathlib import Path
 from typing import Any
 
 from repo_manager.gitops import GitError, commit_paths, is_git_repo
 from repo_manager.standards import FLAVOR_MARKER_PREFIX, expected_workplan_prefix
+from repo_manager.time import utc_today
 
 DURABLE_FLAVORS = ("experimental", "research", "tooling", "product", "business")
 FLAVORS = (*DURABLE_FLAVORS, "project")
@@ -124,7 +124,7 @@ def scaffold_repository(
         f"Workplan prefix: `{prefix}-`.\n",
     )
     if prj:
-        today = date.today().isoformat()
+        today = utc_today().isoformat()
         put(
             "GOAL.md",
             "---\n"