Decide which stale doc references an agent may fix

Your docs drift as the code changes: renamed flags, moved endpoints, dead examples. An agent checks each reference a doc makes to code, and may only propose a fix when it can prove what the reference should now say.

Write triage_doc_anchors(anchors, live_symbols): the rule your agent follows for each reference.

• anchors (list of str): the references the agent found, each written kind:ref, for example "flag:--dry-run".
• live_symbols (list of str): every name that exists in the code today.
• Return one decision per anchor, in input order: "fresh", "patch", "checklist" or "human-review".

Rules, for each anchor:

1. Split at the first :. If there is no :: "human-review".
2. Trim spaces from both ends of both parts, and lowercase the kind. If the kind is not symbol, endpoint, flag or config, or the ref is empty: "human-review".
3. If the ref is exactly equal to one of live_symbols: "fresh".
4. Otherwise normalize the ref and every live symbol: lowercase, then remove every _ and -. Count the distinct live symbols whose normalized form equals the ref's. Exactly 1: "patch". 0, or more than 1: "checklist".