Phase 3 implementation. Coordinate system implemented. Initial text box tool implemented.

frontend/src/features/library/useLibrary.ts

@@ -1,6 +1,6 @@
 import { create } from 'zustand'
 import { libraryApi } from './api'
-import type { DocumentMeta } from './types'
+import type { DocumentMeta, DocumentUpdateRequest } from './types'
 
 interface LibraryState {
   documents: DocumentMeta[]
@@ -25,6 +25,7 @@ interface LibraryState {
   bulkRestore: () => Promise<void>
   emptyTrash: () => Promise<void>
   setSearchQuery: (query: string) => void
+  updateDocument: (id: string, data: DocumentUpdateRequest) => Promise<void>
 }
 
 export const useLibrary = create<LibraryState>((set, get) => ({
@@ -176,5 +177,19 @@ export const useLibrary = create<LibraryState>((set, get) => ({
       set({ error: err.error?.message || err.message, isLoading: false })
       throw err
     }
+  },
+
+  updateDocument: async (id: string, data: DocumentUpdateRequest) => {
+    set({ isLoading: true, error: null })
+    try {
+      const updatedDoc = await libraryApi.updateDocument(id, data)
+      set((state) => ({
+        documents: state.documents.map(d => d.id === id ? updatedDoc : d),
+        isLoading: false
+      }))
+    } catch (err: any) {
+      set({ error: err.error?.message || err.message, isLoading: false })
+      throw err
+    }
   }
 }))