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_planning.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)
@@ -16,9 +16,9 @@ def _bind_user():
 async def test_start_planning_tool_delegates_to_service():
     payload = {"task": {"id": 5}, "applicable_rules": [], "subscribed_rulebooks": [],
                "applicable_rules_truncated": False, "project_goal": "", "open_task_count": 0}
-    with patch("fabledassistant.mcp.tools.tasks.planning_svc.start_planning",
+    with patch("scribe.mcp.tools.tasks.planning_svc.start_planning",
                AsyncMock(return_value=payload)) as mock:
-        from fabledassistant.mcp.tools.tasks import start_planning
+        from scribe.mcp.tools.tasks import start_planning
         out = await start_planning(project_id=3, title="Plan it")
     assert out["task"]["id"] == 5
     assert mock.call_args.kwargs == {"user_id": 7, "project_id": 3, "title": "Plan it"}
@@ -32,11 +32,11 @@ async def test_get_task_augments_plan_with_rules():
     note.to_dict.return_value = {"id": 9, "task_kind": "plan", "project_id": 3}
     applicable = {"rules": [{"id": 1, "title": "r"}], "truncated": False,
                   "subscribed_rulebooks": [{"id": 2, "title": "rb"}]}
-    with patch("fabledassistant.mcp.tools.tasks.notes_svc.get_note",
+    with patch("scribe.mcp.tools.tasks.notes_svc.get_note",
                AsyncMock(return_value=note)), \
-         patch("fabledassistant.mcp.tools.tasks.rulebooks_svc.get_applicable_rules",
+         patch("scribe.mcp.tools.tasks.rulebooks_svc.get_applicable_rules",
                AsyncMock(return_value=applicable)):
-        from fabledassistant.mcp.tools.tasks import get_task
+        from scribe.mcp.tools.tasks import get_task
         out = await get_task(task_id=9)
     assert out["applicable_rules"] == [{"id": 1, "title": "r"}]
     assert out["subscribed_rulebooks"] == [{"id": 2, "title": "rb"}]
@@ -49,11 +49,11 @@ async def test_get_task_work_kind_has_no_rules():
     note.parent_id = None
     note.project_id = 3
     note.to_dict.return_value = {"id": 9, "task_kind": "work", "project_id": 3}
-    with patch("fabledassistant.mcp.tools.tasks.notes_svc.get_note",
+    with patch("scribe.mcp.tools.tasks.notes_svc.get_note",
                AsyncMock(return_value=note)), \
-         patch("fabledassistant.mcp.tools.tasks.rulebooks_svc.get_applicable_rules",
+         patch("scribe.mcp.tools.tasks.rulebooks_svc.get_applicable_rules",
                AsyncMock()) as mock_rules:
-        from fabledassistant.mcp.tools.tasks import get_task
+        from scribe.mcp.tools.tasks import get_task
         out = await get_task(task_id=9)
     assert "applicable_rules" not in out
     assert not mock_rules.called