feat(curator): show rename map in user-visible summary (#22910)

* feat(curator): show rename map (where skills went) in user-visible summary

The full data has always been on disk in REPORT.md, but the user-visible
curator summary (gateway 💾 line, CLI session-start panel,
`hermes curator status`) was counts-only — "consolidated 4 into 2
umbrellas" with no names. Users only discovered renames when something
they expected was gone.

New `_build_rename_summary()` formats the rename map and appends it to
`final_summary`:

    auto: 1 marked stale; llm: consolidated 2 into 1, pruned 1
    archived 3 skill(s):
      • docx-extraction → document-tools
      • pdf-extraction → document-tools
      • old-stale-thing — pruned (stale)
    full report: hermes curator status

Empty on no-op ticks (no archives), so most ticks add zero log noise.
Cap of 10 entries keeps agent.log readable when a 50-skill
consolidation lands; the full list is always in REPORT.md.

`hermes curator status` indents continuation lines so the multi-line
summary reads as one logical field.

5 new tests in tests/agent/test_curator_classification.py covering
empty / consolidation / pruning / cap / mixed cases.

* feat(curator): show recent run summary once on `hermes update`

The rename map is now visible from where users actually look — the
update flow they explicitly run, instead of just the live gateway log
or transient CLI session-start panel.

Behavior:
- After `hermes update`, if the most recent curator run produced a
  rename map (multi-line summary) that the user hasn't seen yet, print
  it once with a 'last run Xh ago' header and a one-time-message
  footer.
- Stamp `last_run_summary_shown_at = last_run_at` after printing so
  subsequent `hermes update` invocations are silent until a newer
  curator run lands.
- Silent on no-op runs (single-line summary like 'auto: no changes;
  llm: no change'). Still stamps shown so we don't reconsider on
  every update.
- Silent when the curator has never run (the existing first-run
  notice handles that case).

Output:

    ℹ Skill curator — last run 4h ago
      auto: 1 marked stale; llm: consolidated 2 into 1, pruned 1
      archived 3 skill(s):
        • docx-extraction → document-tools
        • pdf-extraction → document-tools
        • old-stale-thing — pruned (stale)
      full report: hermes curator status
      (This message shows once per curator run. View anytime: hermes curator status)

State migration:
- `_default_state()` gains `last_run_summary_shown_at: None`. Existing
  state files lack the field; `.get()` returns None; the comparison
  treats any prior run as 'not yet shown' and prints once on next
  update. Self-healing.

Wiring:
- Both `hermes update` paths in main.py call the new
  `_print_curator_recent_run_notice()` right after the existing
  first-run notice. Best-effort try/except so a state-load bug
  never breaks the update flow.

6 tests in tests/hermes_cli/test_curator_recent_run_notice.py:
no-run / single-line / multi-line / show-once / new-run-resets /
time-formatter buckets.

tests/hermes_cli/test_curator_recent_run_notice.py

@@ -0,0 +1,162 @@
+"""Tests for `_print_curator_recent_run_notice`.
+
+The notice prints the most recent curator run summary on `hermes update`,
+exactly once per run. Show-once is enforced by stamping
+`last_run_summary_shown_at` in curator state after printing.
+
+Why this matters: the curator runs in the background (gateway tick + CLI
+session start) so users normally never see the rename map. `hermes update`
+is the high-attention surface where consolidations should land.
+"""
+
+from __future__ import annotations
+
+import importlib
+from datetime import datetime, timedelta, timezone
+from pathlib import Path
+
+import pytest
+
+
+@pytest.fixture
+def curator_env(tmp_path, monkeypatch, capsys):
+    home = tmp_path / ".hermes"
+    home.mkdir()
+    (home / "skills").mkdir()
+    (home / "logs").mkdir()
+    monkeypatch.setenv("HERMES_HOME", str(home))
+    monkeypatch.setattr(Path, "home", lambda: tmp_path)
+
+    import hermes_constants
+    importlib.reload(hermes_constants)
+    from agent import curator
+    importlib.reload(curator)
+    from hermes_cli import main as hermes_main
+    importlib.reload(hermes_main)
+
+    yield {
+        "curator": curator,
+        "main": hermes_main,
+        "capsys": capsys,
+    }
+
+
+def _set_state(curator_mod, **fields):
+    state = curator_mod.load_state()
+    state.update(fields)
+    curator_mod.save_state(state)
+
+
+def test_silent_when_no_curator_run_yet(curator_env):
+    """First-run notice handles this case; recent-run notice stays silent."""
+    curator_env["main"]._print_curator_recent_run_notice()
+    out = curator_env["capsys"].readouterr().out
+    assert "Skill curator — last run" not in out
+
+
+def test_silent_when_summary_is_single_line(curator_env):
+    """No archives = no rename map = nothing to surface. But still stamps shown."""
+    now = datetime.now(timezone.utc).isoformat()
+    _set_state(
+        curator_env["curator"],
+        last_run_at=now,
+        last_run_summary="auto: no changes; llm: no change",
+    )
+    curator_env["main"]._print_curator_recent_run_notice()
+    out = curator_env["capsys"].readouterr().out
+    assert "Skill curator — last run" not in out
+    # Should still mark shown so we don't reconsider on every update.
+    state = curator_env["curator"].load_state()
+    assert state["last_run_summary_shown_at"] == now
+
+
+def test_prints_multiline_summary_with_rename_map(curator_env):
+    """Multi-line summary (rename map appended) prints with timestamp + footer."""
+    now = datetime.now(timezone.utc).isoformat()
+    summary = (
+        "auto: 1 marked stale; llm: consolidated 2 into 1\n"
+        "archived 2 skill(s):\n"
+        "  • pdf-extraction → document-tools\n"
+        "  • docx-extraction → document-tools\n"
+        "full report: hermes curator status"
+    )
+    _set_state(
+        curator_env["curator"],
+        last_run_at=now,
+        last_run_summary=summary,
+    )
+    curator_env["main"]._print_curator_recent_run_notice()
+    out = curator_env["capsys"].readouterr().out
+    assert "Skill curator — last run" in out
+    assert "pdf-extraction → document-tools" in out
+    assert "docx-extraction → document-tools" in out
+    assert "shows once per curator run" in out
+
+
+def test_show_once_semantics(curator_env):
+    """Calling twice prints once; second call is silent until a new run lands."""
+    now = datetime.now(timezone.utc).isoformat()
+    summary = (
+        "auto: no changes; llm: consolidated 1 into 1\n"
+        "archived 1 skill(s):\n"
+        "  • old → new\n"
+        "full report: hermes curator status"
+    )
+    _set_state(
+        curator_env["curator"],
+        last_run_at=now,
+        last_run_summary=summary,
+    )
+
+    curator_env["main"]._print_curator_recent_run_notice()
+    first = curator_env["capsys"].readouterr().out
+    assert "old → new" in first
+
+    curator_env["main"]._print_curator_recent_run_notice()
+    second = curator_env["capsys"].readouterr().out
+    assert second == "", "second call must be silent (already shown)"
+
+
+def test_new_run_resets_show_once(curator_env):
+    """A newer curator run with rename data prints again, even though one was already shown."""
+    older = (datetime.now(timezone.utc) - timedelta(hours=8)).isoformat()
+    _set_state(
+        curator_env["curator"],
+        last_run_at=older,
+        last_run_summary=(
+            "auto: no changes; llm: consolidated 1 into 1\n"
+            "archived 1 skill(s):\n"
+            "  • thing-a → umbrella\n"
+            "full report: hermes curator status"
+        ),
+    )
+    curator_env["main"]._print_curator_recent_run_notice()
+    curator_env["capsys"].readouterr()  # drain
+
+    # New run lands.
+    newer = datetime.now(timezone.utc).isoformat()
+    _set_state(
+        curator_env["curator"],
+        last_run_at=newer,
+        last_run_summary=(
+            "auto: no changes; llm: consolidated 1 into 1\n"
+            "archived 1 skill(s):\n"
+            "  • thing-b → umbrella\n"
+            "full report: hermes curator status"
+        ),
+    )
+    curator_env["main"]._print_curator_recent_run_notice()
+    out = curator_env["capsys"].readouterr().out
+    assert "thing-b → umbrella" in out
+    assert "thing-a" not in out  # only the newer run shows
+
+
+def test_format_time_ago_buckets(curator_env):
+    """Smoke test the time formatter — drives the `last run Xh ago` line."""
+    fmt = curator_env["main"]._format_time_ago
+    now = datetime.now(timezone.utc)
+    assert fmt((now - timedelta(seconds=10)).isoformat()) == "just now"
+    assert fmt((now - timedelta(minutes=5)).isoformat()) == "5m ago"
+    assert fmt((now - timedelta(hours=3)).isoformat()) == "3h ago"
+    assert fmt((now - timedelta(days=2)).isoformat()) == "2d ago"
+    assert fmt("not-a-real-iso-string") == "recently"