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_services_snippets.py

@@ -25,11 +25,11 @@ def test_compose_tags_lowercases_language_and_dedups():
 def test_compose_body_includes_fields_and_fence():
     body = s.compose_body(
         code="return 1", language="python", signature="f() -> int",
-        when_to_use="always", repo="scribe", path="a.py", symbol="f",
+        when_to_use="always", repo="grimoire", path="a.py", symbol="f",
     )
     assert "**When to use:** always" in body
     assert "**Signature:** `f() -> int`" in body
-    assert "`scribe` · `a.py` · `f`" in body
+    assert "`grimoire` · `a.py` · `f`" in body
     assert "```python\nreturn 1\n```" in body
     assert body.rstrip().endswith("```")
 
@@ -43,7 +43,7 @@ def test_parse_round_trips_a_composed_snippet():
     title = "useDebouncedRef"
     body = s.compose_body(
         code="const x = 1", language="ts", signature="useDebouncedRef(v, ms)",
-        when_to_use="debounce a reactive ref", repo="scribe",
+        when_to_use="debounce a reactive ref", repo="grimoire",
         path="frontend/src/composables/x.ts", symbol="useDebouncedRef",
     )
     got = s.parse_snippet_fields(title, body, ["ts", "snippet"])
@@ -52,7 +52,7 @@ def test_parse_round_trips_a_composed_snippet():
     assert got["signature"] == "useDebouncedRef(v, ms)"
     assert got["language"] == "ts"
     assert got["code"] == "const x = 1"
-    assert got["repo"] == "scribe"
+    assert got["repo"] == "grimoire"
     assert got["path"] == "frontend/src/composables/x.ts"
     assert got["symbol"] == "useDebouncedRef"
 
@@ -94,33 +94,33 @@ def test_compose_body_multi_location_renders_bullet_list():
     body = s.compose_body(
         code="x = 1",
         locations=[
-            {"repo": "scribe", "path": "a.py", "symbol": "f"},
+            {"repo": "grimoire", "path": "a.py", "symbol": "f"},
             {"repo": "web", "path": "b.ts", "symbol": "g"},
         ],
     )
     assert "**Locations:**" in body
-    assert "- `scribe` · `a.py` · `f`" in body
+    assert "- `grimoire` · `a.py` · `f`" in body
     assert "- `web` · `b.ts` · `g`" in body
     assert "**Location:**" not in body.replace("**Locations:**", "")
 
 
 def test_compose_body_single_location_via_list_uses_singular_label():
     body = s.compose_body(
-        code="x = 1", locations=[{"repo": "scribe", "path": "a.py", "symbol": "f"}],
+        code="x = 1", locations=[{"repo": "grimoire", "path": "a.py", "symbol": "f"}],
     )
-    assert "**Location:** `scribe` · `a.py` · `f`" in body
+    assert "**Location:** `grimoire` · `a.py` · `f`" in body
     assert "**Locations:**" not in body
 
 
 def test_normalize_locations_drops_empty_and_dedups():
     got = s._normalize_locations([
-        {"repo": "scribe", "path": "a.py", "symbol": "f"},
+        {"repo": "grimoire", "path": "a.py", "symbol": "f"},
         {"repo": "", "path": "", "symbol": ""},          # dropped (empty)
-        {"repo": "scribe", "path": "a.py", "symbol": "f"},  # dropped (dup)
+        {"repo": "grimoire", "path": "a.py", "symbol": "f"},  # dropped (dup)
         {"repo": "web", "path": "", "symbol": ""},
     ])
     assert got == [
-        {"repo": "scribe", "path": "a.py", "symbol": "f"},
+        {"repo": "grimoire", "path": "a.py", "symbol": "f"},
         {"repo": "web", "path": "", "symbol": ""},
     ]
 
@@ -129,25 +129,25 @@ def test_parse_round_trips_multi_location():
     body = s.compose_body(
         code="const x = 1", language="ts",
         locations=[
-            {"repo": "scribe", "path": "a.ts", "symbol": "f"},
+            {"repo": "grimoire", "path": "a.ts", "symbol": "f"},
             {"repo": "web", "path": "b.ts", "symbol": "g"},
         ],
     )
     got = s.parse_snippet_fields("n — u", body, ["ts", "snippet"])
     assert got["locations"] == [
-        {"repo": "scribe", "path": "a.ts", "symbol": "f"},
+        {"repo": "grimoire", "path": "a.ts", "symbol": "f"},
         {"repo": "web", "path": "b.ts", "symbol": "g"},
     ]
     # repo/path/symbol mirror the first location for back-compat.
-    assert (got["repo"], got["path"], got["symbol"]) == ("scribe", "a.ts", "f")
+    assert (got["repo"], got["path"], got["symbol"]) == ("grimoire", "a.ts", "f")
 
 
 def test_parse_legacy_single_location_line_still_works():
     # A body written by the pre-multi-location serializer.
-    body = "**Location:** `scribe` · `a.py` · `f`\n\n```py\nx = 1\n```\n"
+    body = "**Location:** `grimoire` · `a.py` · `f`\n\n```py\nx = 1\n```\n"
     got = s.parse_snippet_fields("n — u", body, None)
-    assert got["locations"] == [{"repo": "scribe", "path": "a.py", "symbol": "f"}]
-    assert (got["repo"], got["path"], got["symbol"]) == ("scribe", "a.py", "f")
+    assert got["locations"] == [{"repo": "grimoire", "path": "a.py", "symbol": "f"}]
+    assert (got["repo"], got["path"], got["symbol"]) == ("grimoire", "a.py", "f")
 
 
 def test_merge_snippet_fields_unions_locations_and_tags():