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_auth.py

@@ -3,7 +3,7 @@ from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
 
-from fabledassistant.mcp.auth import resolve_bearer, resolve_bearer_to_user_id
+from scribe.mcp.auth import resolve_bearer, resolve_bearer_to_user_id
 
 
 @pytest.mark.asyncio
@@ -22,7 +22,7 @@ async def test_resolve_bearer_malformed_header_returns_none():
 @pytest.mark.asyncio
 async def test_resolve_bearer_unknown_token_returns_none():
     with patch(
-        "fabledassistant.mcp.auth.lookup_key",
+        "scribe.mcp.auth.lookup_key",
         AsyncMock(return_value=None),
     ):
         assert await resolve_bearer_to_user_id("Bearer fmcp_doesnotexist") is None
@@ -33,7 +33,7 @@ async def test_resolve_bearer_valid_token_returns_user_id():
     fake_key = MagicMock()
     fake_key.user_id = 42
     with patch(
-        "fabledassistant.mcp.auth.lookup_key",
+        "scribe.mcp.auth.lookup_key",
         AsyncMock(return_value=fake_key),
     ):
         uid = await resolve_bearer_to_user_id("Bearer fmcp_validkey")
@@ -46,7 +46,7 @@ async def test_resolve_bearer_calls_lookup_with_stripped_token():
     fake_key = MagicMock()
     fake_key.user_id = 1
     mock_lookup = AsyncMock(return_value=fake_key)
-    with patch("fabledassistant.mcp.auth.lookup_key", mock_lookup):
+    with patch("scribe.mcp.auth.lookup_key", mock_lookup):
         await resolve_bearer_to_user_id("Bearer fmcp_abc123  ")
     mock_lookup.assert_awaited_once_with("fmcp_abc123")
 
@@ -58,13 +58,13 @@ async def test_resolve_bearer_returns_user_id_and_scope():
     fake_key = MagicMock()
     fake_key.user_id = 9
     fake_key.scope = "read"
-    with patch("fabledassistant.mcp.auth.lookup_key", AsyncMock(return_value=fake_key)):
+    with patch("scribe.mcp.auth.lookup_key", AsyncMock(return_value=fake_key)):
         assert await resolve_bearer("Bearer fmcp_x") == (9, "read")
 
 
 @pytest.mark.asyncio
 async def test_resolve_bearer_none_for_invalid():
-    with patch("fabledassistant.mcp.auth.lookup_key", AsyncMock(return_value=None)):
+    with patch("scribe.mcp.auth.lookup_key", AsyncMock(return_value=None)):
         assert await resolve_bearer("Bearer nope") is None
     assert await resolve_bearer(None) is None
 
@@ -73,7 +73,7 @@ async def test_resolve_bearer_none_for_invalid():
 
 def test_body_calls_write_tool_classifies_correctly():
     import json
-    from fabledassistant.mcp.server import _body_calls_write_tool
+    from scribe.mcp.server import _body_calls_write_tool
 
     def call(name):
         return json.dumps({"jsonrpc": "2.0", "id": 1, "method": "tools/call",