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>

docs/development.md

@@ -93,7 +93,7 @@ config on the runner host.
 
 ### Docker Registry
 
-Images pushed to: `git.fabledsword.com/bvandeusen/fabledassistant`
+Images pushed to: `git.fabledsword.com/bvandeusen/scribe`
 Cache tag: `:cache` (reduces build time ~80%)
 
 Required secrets (repo → Settings → Secrets → Actions):
@@ -140,8 +140,8 @@ Current migration sequence (all idempotent raw SQL):
 
 ### Backend
 
-- Services: `async with async_session() as session:` — import from `fabledassistant.models`
-- No `fabledassistant.database` module
+- Services: `async with async_session() as session:` — import from `scribe.models`
+- No `scribe.database` module
 - Blueprint per resource: `routes/notes.py`, `routes/tasks.py`, etc.
 - All business logic in `services/`; routes are thin wrappers
 - Permission checks via `services/access.py` — never inline ownership checks in routes