refactor: rename package fabledassistant -> scribe (code-only)

Renames src/fabledassistant -> src/scribe and all imports, plus the
default DB name and DB user/password (fabled -> scribe) in config +
compose. 952 refs / 154 files. Reverses the old 'internal name stays
fabledassistant' convention.

Code-only: live databases are still physically named 'fabledassistant'.
Deployed environments must set POSTGRES_DB / POSTGRES_USER (or rename the
DB) since the defaults now resolve to 'scribe'. Repo (FabledScribe), git
host (fabledsword), MCP (fabled-git) and the image name (fabledscribe)
are intentionally unchanged.

ruff check src/ clean locally; CI (typecheck + pytest) is the gate.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/scribe/mcp/tools/__init__.py

@@ -0,0 +1,25 @@
+"""MCP tool implementations.
+
+Each tool module exposes a `register(mcp)` function that attaches its tools
+to a FastMCP instance. `register_all(mcp)` is the single entry point called
+from `mcp.server.build_mcp_server`.
+"""
+from scribe.mcp.tools import (
+    entities, events, milestones, notes, processes, projects, recent, rulebooks, search, tags, tasks, trash,
+)
+
+
+def register_all(mcp) -> None:
+    """Register every tool module's tools on the given FastMCP instance."""
+    search.register(mcp)
+    notes.register(mcp)
+    tasks.register(mcp)
+    projects.register(mcp)
+    milestones.register(mcp)
+    events.register(mcp)
+    tags.register(mcp)
+    recent.register(mcp)
+    entities.register(mcp)
+    processes.register(mcp)
+    rulebooks.register(mcp)
+    trash.register(mcp)