feat(tasks): unify saved tasks on ssh_tasks services

- Add shared task_runner.run_saved_task helper used by routers/tasks.py and
  widgets/sources.py SshTaskWidgetSource.
- Saved tasks now target ssh_tasks service instances via default_service_id;
  the legacy default_machine_id and saved_task_runs are removed.
- Actions page lists ssh_tasks services for default and run-time selection.
- Update types, API client, hooks, tests, docs, and changelog.

Backend tests: 222 passed. Frontend lint/build/test: clean (71 passed).

frontend/src/pages/__tests__/Actions.test.tsx

@@ -2,7 +2,7 @@ import { describe, it, expect, vi, beforeEach } from "vitest";
 import { render, screen } from "@testing-library/react";
 import userEvent from "@testing-library/user-event";
 import { Actions } from "../Actions";
-import type { MonitoringMachine, SavedTask } from "../../types";
+import type { SavedTask, ServiceInstance } from "../../types";
 
 const saveTaskMutate = vi.fn().mockResolvedValue({
 	id: "t1",
@@ -10,17 +10,16 @@ const saveTaskMutate = vi.fn().mockResolvedValue({
 	task_type: "shell",
 	content: "",
 	enabled: true,
-	default_machine_id: "",
+	default_service_id: "",
 	notes: "",
 });
 const deleteTaskMutate = vi.fn();
 const runTaskMutate = vi.fn().mockResolvedValue({});
 
-let machines: MonitoringMachine[] = [];
+let sshServices: ServiceInstance[] = [];
 let tasks: SavedTask[] = [];
 
 vi.mock("../../hooks/useSettings", () => ({
-	useMonitoringSettings: () => ({ data: machines }),
 	useTasks: () => ({ data: tasks }),
 	useSaveTask: () => ({ mutateAsync: saveTaskMutate, isPending: false }),
 	useDeleteTask: () => ({ mutate: deleteTaskMutate }),
@@ -28,29 +27,22 @@ vi.mock("../../hooks/useSettings", () => ({
 	useTaskRuns: () => ({ data: { items: [] } }),
 }));
 
-function machine(
-	overrides: Partial<MonitoringMachine> = {},
-): MonitoringMachine {
+vi.mock("../../hooks/useServices", () => ({
+	useServiceInstances: () => ({ data: sshServices }),
+}));
+
+function sshService(overrides: Partial<ServiceInstance> = {}): ServiceInstance {
 	return {
-		id: "m1",
-		name: "This machine",
-		mode: "local",
+		id: "s1",
+		service_type: "ssh_tasks",
+		name: "Box",
+		config: { host: "box", username: "u" },
+		secrets_set: {},
 		enabled: true,
-		services: ["monitoring", "files"],
-		host: "",
-		port: 22,
-		username: "",
-		key_directory: "",
-		key_name: "",
-		ssh_key_id: "",
-		ssh_private_key_set: false,
-		ssh_private_key_passphrase_set: false,
-		password_set: false,
-		media_root: "",
-		path_prefix: "",
-		notes: "",
+		created_at: 0,
+		updated_at: 0,
 		...overrides,
-	} as MonitoringMachine;
+	} as ServiceInstance;
 }
 
 function task(overrides: Partial<SavedTask> = {}): SavedTask {
@@ -60,7 +52,7 @@ function task(overrides: Partial<SavedTask> = {}): SavedTask {
 		task_type: "shell",
 		content: "systemctl restart foo",
 		enabled: true,
-		default_machine_id: "",
+		default_service_id: "",
 		notes: "",
 		created_at: 0,
 		updated_at: 0,
@@ -72,7 +64,7 @@ beforeEach(() => {
 	saveTaskMutate.mockClear();
 	deleteTaskMutate.mockClear();
 	runTaskMutate.mockClear();
-	machines = [];
+	sshServices = [];
 	tasks = [];
 });
 
@@ -97,10 +89,11 @@ describe("Actions", () => {
 		const saved = saveTaskMutate.mock.calls[0][0];
 		expect(saved.name).toBe("Restart svc");
 		expect(saved.task_type).toBe("shell");
+		expect(saved.default_service_id).toBe("");
 	});
 
-	it("disables the Run button until a run machine is selected", async () => {
-		machines = [machine()];
+	it("disables the Run button until a run service is selected", async () => {
+		sshServices = [sshService()];
 		tasks = [task()];
 		render(<Actions />);
 
@@ -110,4 +103,23 @@ describe("Actions", () => {
 		const runButton = screen.getByRole("button", { name: "Run action" });
 		expect(runButton).toBeDisabled();
 	});
+
+	it("runs a task on the selected SSH task service", async () => {
+		sshServices = [sshService()];
+		tasks = [task()];
+		render(<Actions />);
+
+		await userEvent.click(screen.getByRole("tab", { name: "Restart svc" }));
+		await userEvent.click(
+			screen.getByRole("combobox", { name: "Run on SSH task service" }),
+		);
+		await userEvent.click(screen.getByRole("option", { name: "Box" }));
+		await userEvent.click(screen.getByRole("button", { name: "Run action" }));
+
+		expect(runTaskMutate).toHaveBeenCalledTimes(1);
+		expect(runTaskMutate).toHaveBeenCalledWith({
+			taskId: "t1",
+			serviceId: "s1",
+		});
+	});
 });