Initial commit: AI chat assistant with workflow chat, workspace, and profile tabs

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

composables/useWorkspace.uts

@@ -0,0 +1,69 @@
+/**
+ * useWorkspace — Workspace items management
+ *
+ * Manages workspace items generated from AI workflow responses.
+ * Items are persisted and filterable by workflow type.
+ */
+
+import type { WorkspaceItem, WorkflowId } from '@/types/index'
+import { STORAGE_KEYS } from '@/constants/index'
+import { useStorage } from './useStorage'
+
+export function useWorkspace() {
+  const { loadValue, saveValue } = useStorage()
+
+  const workspaceItems = ref<WorkspaceItem[]>(
+    loadValue<WorkspaceItem[]>(STORAGE_KEYS.WORKSPACE, [])
+  )
+
+  function persist(): void {
+    saveValue(STORAGE_KEYS.WORKSPACE, workspaceItems.value)
+  }
+
+  /**
+   * Add a new workspace item.
+   */
+  function addWorkspaceItem(item: WorkspaceItem): void {
+    workspaceItems.value.unshift(item)
+    persist()
+  }
+
+  /**
+   * Remove a workspace item by ID.
+   */
+  function removeWorkspaceItem(id: string): void {
+    workspaceItems.value = workspaceItems.value.filter((item) => item.id !== id)
+    persist()
+  }
+
+  /**
+   * Get workspace items filtered by workflow type.
+   */
+  function getItemsByWorkflow(workflowId: WorkflowId): WorkspaceItem[] {
+    return workspaceItems.value.filter((item) => item.workflowId === workflowId)
+  }
+
+  /**
+   * Get workspace item by ID.
+   */
+  function getItemById(id: string): WorkspaceItem | undefined {
+    return workspaceItems.value.find((item) => item.id === id)
+  }
+
+  /**
+   * Clear all workspace items.
+   */
+  function clearAll(): void {
+    workspaceItems.value = []
+    persist()
+  }
+
+  return {
+    workspaceItems,
+    addWorkspaceItem,
+    removeWorkspaceItem,
+    getItemsByWorkflow,
+    getItemById,
+    clearAll,
+  }
+}