rename(547): what people read says Grimoire

Step 1 of the Scribe -> Grimoire rename: every capitalised "Scribe" in prose
becomes "Grimoire" ("Fabled Scribe" -> "Fabled Grimoire") across the UI,
the PWA manifest and page title, the MCP instructions and tool docstrings,
hook and skill text, docs and README, with the tests that assert on that
prose moving with it. Old migrations keep their wording.

Identifiers are untouched here: the package, plugin name, MCP server key,
hook file names, env vars, the .scribe marker and FabledScribe repo/image
names move in steps 2 and 3, along with prose that quotes them.

The sweep matched "Scribe" only as a whole word, so describe/subscribe and
friends are untouched. The longer name took the MCP instructions one
character over their 1,600 budget; two phrases are shortened to fit.

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

tests/test_stamps_to_review.py

@@ -55,7 +55,7 @@ def test_every_score_the_hook_can_write_reads_back(score) -> None:
 
 
 def test_the_real_reasons_from_the_poisoned_ledgers_parse() -> None:
-    """Verbatim from Portal and Scribe rows, so the parser is pinned to text
+    """Verbatim from Portal and Grimoire rows, so the parser is pinned to text
     that actually exists in the database rather than to text it generates."""
     assert stamp_score("hook: pulled #3283; payload resembles it (0.69)") == 0.69
     assert stamp_score("hook: pulled #3283; payload resembles it (0.77)") == 0.77
@@ -93,7 +93,7 @@ def test_a_stamp_at_or_above_the_floor_is_not_listed() -> None:
 
 @pytest.mark.parametrize("by", ["agent", "audit", "import", "mechanical"])
 def test_a_judgment_is_never_weak_however_it_would_have_scored(by) -> None:
-    """The measured case: 302 of Scribe's 334 rows under one canon were
+    """The measured case: 302 of Grimoire's 334 rows under one canon were
     `audit`-classified with no score at all. Listing those as weak would
     invite an agent to withdraw the only judgments in the ledger that were
     ever actually made by one."""