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>

tests/test_mcp_tool_tasks_kind.py

@@ -2,7 +2,7 @@ from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
 
-from fabledassistant.mcp._context import _user_id_ctx
+from scribe.mcp._context import _user_id_ctx
 
 
 @pytest.fixture(autouse=True)
@@ -21,8 +21,8 @@ def _fake_note(task_kind="work"):
 @pytest.mark.asyncio
 async def test_create_task_passes_kind():
     mock = AsyncMock(return_value=_fake_note(task_kind="plan"))
-    with patch("fabledassistant.mcp.tools.tasks.notes_svc.create_note", mock):
-        from fabledassistant.mcp.tools.tasks import create_task
+    with patch("scribe.mcp.tools.tasks.notes_svc.create_note", mock):
+        from scribe.mcp.tools.tasks import create_task
         await create_task(title="P", kind="plan")
     assert mock.call_args.kwargs["task_kind"] == "plan"
 
@@ -30,8 +30,8 @@ async def test_create_task_passes_kind():
 @pytest.mark.asyncio
 async def test_list_tasks_passes_kind_filter():
     mock = AsyncMock(return_value=([], 0))
-    with patch("fabledassistant.mcp.tools.tasks.notes_svc.list_notes", mock):
-        from fabledassistant.mcp.tools.tasks import list_tasks
+    with patch("scribe.mcp.tools.tasks.notes_svc.list_notes", mock):
+        from scribe.mcp.tools.tasks import list_tasks
         await list_tasks(kind="plan")
     assert mock.call_args.kwargs["task_kind"] == "plan"
 
@@ -39,7 +39,7 @@ async def test_list_tasks_passes_kind_filter():
 @pytest.mark.asyncio
 async def test_list_tasks_kind_empty_means_no_filter():
     mock = AsyncMock(return_value=([], 0))
-    with patch("fabledassistant.mcp.tools.tasks.notes_svc.list_notes", mock):
-        from fabledassistant.mcp.tools.tasks import list_tasks
+    with patch("scribe.mcp.tools.tasks.notes_svc.list_notes", mock):
+        from scribe.mcp.tools.tasks import list_tasks
         await list_tasks()
     assert mock.call_args.kwargs["task_kind"] is None