feat(bookstack) : add frontend BookStack service

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

frontend/services/bookstack.ts

@@ -0,0 +1,66 @@
+import type {
+    BookStackSettings,
+    BookStackSettingsWrite,
+    BookStackTestResult,
+    BookStackShelf,
+    BookStackLink,
+    BookStackLinkCreate,
+    BookStackSearchResult,
+} from './dto/bookstack'
+import type { HydraCollection } from '~/utils/api'
+import { extractHydraMembers } from '~/utils/api'
+
+export function useBookStackService() {
+    const api = useApi()
+
+    async function getSettings(): Promise<BookStackSettings> {
+        return api.get<BookStackSettings>('/settings/bookstack')
+    }
+
+    async function saveSettings(payload: BookStackSettingsWrite): Promise<BookStackSettings> {
+        return api.put<BookStackSettings>('/settings/bookstack', payload as Record<string, unknown>, {
+            toastSuccessKey: 'bookstack.settings.saved',
+        })
+    }
+
+    async function testConnection(): Promise<BookStackTestResult> {
+        return api.post<BookStackTestResult>('/settings/bookstack/test')
+    }
+
+    async function listShelves(): Promise<BookStackShelf[]> {
+        const data = await api.get<HydraCollection<BookStackShelf>>('/bookstack/shelves')
+        return extractHydraMembers(data)
+    }
+
+    async function getLinks(taskId: number): Promise<BookStackLink[]> {
+        const data = await api.get<HydraCollection<BookStackLink>>(`/tasks/${taskId}/bookstack/links`)
+        return extractHydraMembers(data)
+    }
+
+    async function addLink(taskId: number, payload: BookStackLinkCreate): Promise<BookStackLink> {
+        return api.post<BookStackLink>(`/tasks/${taskId}/bookstack/links`, payload as Record<string, unknown>)
+    }
+
+    async function removeLink(taskId: number, linkId: number): Promise<void> {
+        await api.delete(`/tasks/${taskId}/bookstack/links/${linkId}`)
+    }
+
+    async function search(taskId: number, query: string): Promise<BookStackSearchResult[]> {
+        const data = await api.get<HydraCollection<BookStackSearchResult>>(
+            `/tasks/${taskId}/bookstack/search`,
+            { q: query },
+        )
+        return extractHydraMembers(data)
+    }
+
+    return {
+        getSettings,
+        saveSettings,
+        testConnection,
+        listShelves,
+        getLinks,
+        addLink,
+        removeLink,
+        search,
+    }
+}