feat(fable-mcp): build wheel in Docker image, serve download, add admin log tool, and Settings install UI

- Dockerfile: build fable-mcp wheel into /app/dist/ during image build
- routes/fable_mcp_dist.py: GET /api/fable-mcp/info + /download endpoints
- app.py: register fable_mcp_dist_bp
- fable_mcp/tools/admin.py: get_app_logs() hitting /api/admin/logs
- fable_mcp/server.py: fable_get_app_logs MCP tool
- SettingsView: "Fable MCP" section in API Keys tab with download button and install instructions
- client.ts: getFableMcpInfo() helper
- ci.yml: add fable-mcp/** to trigger paths

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/fabledassistant/app.py

@@ -20,6 +20,7 @@ from fabledassistant.routes.milestones import milestones_bp
 from fabledassistant.routes.task_logs import task_logs_bp
 from fabledassistant.routes.projects import projects_bp
 from fabledassistant.routes.push import push_bp
+from fabledassistant.routes.fable_mcp_dist import fable_mcp_dist_bp
 from fabledassistant.routes.quick_capture import quick_capture_bp
 from fabledassistant.routes.settings import settings_bp
 from fabledassistant.routes.tasks import tasks_bp
@@ -69,6 +70,7 @@ def create_app() -> Quart:
     app.register_blueprint(images_bp)
     app.register_blueprint(milestones_bp)
     app.register_blueprint(notes_bp)
+    app.register_blueprint(fable_mcp_dist_bp)
     app.register_blueprint(projects_bp)
     app.register_blueprint(push_bp)
     app.register_blueprint(quick_capture_bp)