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>

plugin/hooks/scribe_precompact_preserve.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Scribe plugin — PreCompact: tell the summarizer what must survive.
+# Grimoire plugin — PreCompact: tell the summarizer what must survive.
 #
 # HOW A PRECOMPACT HOOK REACHES THE MODEL (as read out of Claude Code 2.1.273):
 #
@@ -59,19 +59,19 @@ cat <<'EOF'
 Preserve the following literally in the summary — copied through, not
 paraphrased or counted:
 
-- Every Scribe record the conversation refers to, by id AND title: tasks,
+- Every Grimoire record the conversation refers to, by id AND title: tasks,
   issues, milestones, notes, rules, systems. A bare "#4061" is not enough; a
   record whose name is lost has to be looked up again before it can be used.
 - Which task is in progress and what its status was last set to, plus the
   milestone it sits under.
-- Work that was done but NOT yet recorded in Scribe — an edit with no work-log,
+- Work that was done but NOT yet recorded in Grimoire — an edit with no work-log,
   a fix not filed as an issue, a decision not written down. Carry these over as
   outstanding; they exist nowhere else once this conversation is summarized.
 - Any rule or preference that was retrieved and still governs the work, by id
   and title.
 - Anything the operator asked for that has not been done yet, in their words.
 
-Everything else here can be recovered from the repository or from Scribe. These
+Everything else here can be recovered from the repository or from Grimoire. These
 cannot: they are this session's only copy.
 EOF