feat(web): automations contracts, API client, atoms and hooks

Foundation for the v1 automations UI. Mirrors backend Pydantic schemas
into Zod and wires the data layer end-to-end so feature surfaces can
be built on top.

contracts/types/automation.types.ts:
- AutomationStatus, TriggerType, RunStatus enums.
- AutomationDefinition envelope (PlanStep, TriggerSpec, Execution,
  Metadata, Inputs).
- AutomationCreate/Update/Detail/Summary/List + listParams.
- TriggerCreate/Update/Detail.
- RunSummary/Detail/List + runListParams.

lib/apis/automations-api.service.ts:
- list/get/create/update/delete automations.
- add/update/remove triggers (sub-resource).
- list/get runs (read-only sub-resource).
- safeParse on every write, 204-safe deletes.

atoms/automations/:
- automationsListAtom (active search space, first page).
- 6 mutation atoms with toast + cache invalidation.

hooks/:
- use-automations.ts wraps the list atom.
- use-automation.ts: parameterized detail by id.
- use-automation-runs.ts: useAutomationRuns + useAutomationRun.

lib/query-client/cache-keys.ts: automations namespace (list, detail,
runs, run) keyed by (id, limit, offset) where relevant.

Smoke: zod round-trip OK on backend-shape payloads (Automation,
AutomationCreate, Trigger, Run); typecheck clean for new files;
biome clean.

surfsense_web/lib/apis/automations-api.service.ts

@@ -0,0 +1,102 @@
+import {
+	type AutomationCreateRequest,
+	type AutomationListParams,
+	type AutomationUpdateRequest,
+	automation,
+	automationCreateRequest,
+	automationListResponse,
+	automationUpdateRequest,
+	type RunListParams,
+	run,
+	runListResponse,
+	type TriggerCreateRequest,
+	type TriggerUpdateRequest,
+	trigger,
+	triggerCreateRequest,
+	triggerUpdateRequest,
+} from "@/contracts/types/automation.types";
+import { ValidationError } from "../error";
+import { baseApiService } from "./base-api.service";
+
+const BASE = "/api/v1/automations";
+
+function rejectIfInvalid<T>(
+	parsed: { success: true; data: T } | { success: false; error: { issues: { message: string }[] } }
+): T {
+	if (!parsed.success) {
+		throw new ValidationError(
+			`Invalid request: ${parsed.error.issues.map((i) => i.message).join(", ")}`
+		);
+	}
+	return parsed.data;
+}
+
+class AutomationsApiService {
+	// ---- Automations ---------------------------------------------------------
+
+	listAutomations = async (params: AutomationListParams) => {
+		const qs = new URLSearchParams({
+			search_space_id: String(params.search_space_id),
+			limit: String(params.limit),
+			offset: String(params.offset),
+		});
+		return baseApiService.get(`${BASE}?${qs.toString()}`, automationListResponse);
+	};
+
+	getAutomation = async (automationId: number) => {
+		return baseApiService.get(`${BASE}/${automationId}`, automation);
+	};
+
+	createAutomation = async (request: AutomationCreateRequest) => {
+		const data = rejectIfInvalid(automationCreateRequest.safeParse(request));
+		return baseApiService.post(BASE, automation, { body: data });
+	};
+
+	updateAutomation = async (automationId: number, request: AutomationUpdateRequest) => {
+		const data = rejectIfInvalid(automationUpdateRequest.safeParse(request));
+		return baseApiService.patch(`${BASE}/${automationId}`, automation, { body: data });
+	};
+
+	// Server returns 204; baseApiService now resolves to null and skips schema validation.
+	deleteAutomation = async (automationId: number) => {
+		return baseApiService.delete(`${BASE}/${automationId}`);
+	};
+
+	// ---- Triggers (sub-resource) --------------------------------------------
+
+	addTrigger = async (automationId: number, request: TriggerCreateRequest) => {
+		const data = rejectIfInvalid(triggerCreateRequest.safeParse(request));
+		return baseApiService.post(`${BASE}/${automationId}/triggers`, trigger, { body: data });
+	};
+
+	updateTrigger = async (
+		automationId: number,
+		triggerId: number,
+		request: TriggerUpdateRequest
+	) => {
+		const data = rejectIfInvalid(triggerUpdateRequest.safeParse(request));
+		return baseApiService.patch(`${BASE}/${automationId}/triggers/${triggerId}`, trigger, {
+			body: data,
+		});
+	};
+
+	removeTrigger = async (automationId: number, triggerId: number) => {
+		return baseApiService.delete(`${BASE}/${automationId}/triggers/${triggerId}`);
+	};
+
+	// ---- Runs (sub-resource, read-only) -------------------------------------
+
+	listRuns = async (automationId: number, params: RunListParams) => {
+		const qs = new URLSearchParams({
+			limit: String(params.limit),
+			offset: String(params.offset),
+		});
+		return baseApiService.get(`${BASE}/${automationId}/runs?${qs.toString()}`, runListResponse);
+	};
+
+	getRun = async (automationId: number, runId: number) => {
+		return baseApiService.get(`${BASE}/${automationId}/runs/${runId}`, run);
+	};
+}
+
+export const automationsApiService = new AutomationsApiService();