rename(547): the plugin is grimoire — manifest, MCP key, hooks, env, skills

Step 3 of the Scribe -> Grimoire rename.

- Plugin `grimoire` in marketplace `grimoire-plugin`, MCP server key
  `grimoire`, so tools reach a session as mcp__plugin_grimoire_grimoire__*.
- hooks/scribe_* -> hooks/grimoire_*, their shell functions and the TMPDIR
  ledgers with them; SCRIBE_URL / SCRIBE_TOKEN / SCRIBE_HOOK_DIR /
  SCRIBE_LEDGER_DIRS -> GRIMOIRE_*; the project marker is `.grimoire`.
- skills/using-scribe -> using-grimoire, /grimoire:sync, stored processes
  arrive as grimoire-proc-<slug>; moment_actions names them the same way.
- Migration 0124 rewrites stored skill names (rule_moments,
  rule_moment_judgments, moment_mappings) from scribe:/scribe-proc- to
  grimoire:/grimoire-proc-, so a rule mounted on a skill keeps firing.
- Settings' install commands and MCP-only defaults, the docs and the
  tests follow.
- scripts/check_plugin.py drops the smoke event for a report-check hook
  that has no file in plugin/hooks.

Kept on purpose: the secret-sealing label, and the names that let backups
written as Scribe restore and be counted.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/test_hook_duplicate_confirmation.py

@@ -1,7 +1,7 @@
 """The by-name duplicate arm confirms its grep hits against the real extractor.
 
 The extractors that decide what a payload DEFINES blank comment and string
-spans before any line matcher runs. This is the other end — `scribe_local_dups`,
+spans before any line matcher runs. This is the other end — `grimoire_local_dups`,
 which decides which OTHER files already define that name — and a plain
 `git grep` cannot do that.
 
@@ -34,7 +34,7 @@ from pathlib import Path
 import pytest
 
 ROOT = Path(__file__).resolve().parents[1]
-DEFS = ROOT / "plugin" / "hooks" / "scribe_defs.sh"
+DEFS = ROOT / "plugin" / "hooks" / "grimoire_defs.sh"
 
 
 @pytest.fixture
@@ -62,7 +62,7 @@ def repo(tmp_path):
 
     def run(names: str, writing: str = "new.py") -> str:
         script = (f'set -uo pipefail\n. "{DEFS}"\n'
-                  f'printf %s "$NAMES" | scribe_local_dups "{root}" {writing}\n')
+                  f'printf %s "$NAMES" | grimoire_local_dups "{root}" {writing}\n')
         out = subprocess.run(["bash", "-c", script], capture_output=True,
                              text=True, env={**env, "NAMES": names}, timeout=120)
         assert out.returncode == 0, out.stderr
@@ -117,7 +117,7 @@ def test_the_repos_own_prose_does_not_define_with():
 
     def arm(name: str) -> str:
         script = (f'set -uo pipefail\n. "{DEFS}"\n'
-                  f'printf "sym\\t{name}\\n" | scribe_local_dups "{ROOT}" nothing.py\n')
+                  f'printf "sym\\t{name}\\n" | grimoire_local_dups "{ROOT}" nothing.py\n')
         out = subprocess.run(["bash", "-c", script], capture_output=True,
                              text=True, timeout=180)
         assert out.returncode == 0, out.stderr
@@ -168,10 +168,10 @@ def test_the_candidate_cap_is_raised_above_the_display_cap():
     anyone looked at them. Asserted on structure because the ordering is what
     matters, not the numbers."""
     src = DEFS.read_text()
-    for const in ("_SCRIBE_DUP_CANDIDATES=", "_SCRIBE_DUP_SHOWN="):
+    for const in ("_GRIMOIRE_DUP_CANDIDATES=", "_GRIMOIRE_DUP_SHOWN="):
         assert const in src, f"{const.rstrip(chr(61))} is gone — the two caps were folded back together"
-    cands = int(src.split("_SCRIBE_DUP_CANDIDATES=")[1].split("\n")[0])
-    shown = int(src.split("_SCRIBE_DUP_SHOWN=")[1].split("\n")[0])
+    cands = int(src.split("_GRIMOIRE_DUP_CANDIDATES=")[1].split("\n")[0])
+    shown = int(src.split("_GRIMOIRE_DUP_SHOWN=")[1].split("\n")[0])
     assert cands > shown, (
         f"candidates ({cands}) must exceed the display cap ({shown}), or "
         "confirmation can only ever shrink an already-truncated window"