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/routes/in_app_notifications.py

@@ -0,0 +1,44 @@
+from quart import Blueprint, jsonify, request
+
+from scribe.auth import get_current_user_id, login_required
+from scribe.services.notifications import (
+    list_in_app_notifications,
+    mark_all_notifications_read,
+    mark_notification_read,
+    unread_notification_count,
+)
+
+notifications_bp = Blueprint("notifications", __name__, url_prefix="/api/notifications")
+
+
+@notifications_bp.route("", methods=["GET"])
+@login_required
+async def list_notifications():
+    uid = get_current_user_id()
+    all_flag = request.args.get("all", "false").lower() == "true"
+    items = await list_in_app_notifications(uid, unread_only=not all_flag)
+    return jsonify({"notifications": items})
+
+
+@notifications_bp.route("/count", methods=["GET"])
+@login_required
+async def get_count():
+    uid = get_current_user_id()
+    return jsonify({"count": await unread_notification_count(uid)})
+
+
+@notifications_bp.route("/<int:notif_id>/read", methods=["POST"])
+@login_required
+async def mark_read(notif_id: int):
+    uid = get_current_user_id()
+    if not await mark_notification_read(uid, notif_id):
+        return jsonify({"error": "Not found"}), 404
+    return jsonify({"status": "ok"})
+
+
+@notifications_bp.route("/read-all", methods=["POST"])
+@login_required
+async def mark_all_read():
+    uid = get_current_user_id()
+    count = await mark_all_notifications_read(uid)
+    return jsonify({"status": "ok", "marked": count})