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

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

composables/useWorkflow.uts

@@ -0,0 +1,43 @@
+/**
+ * useWorkflow — Current workflow selection state
+ *
+ * Manages which workflow is active (general, code, document, data, creative).
+ * The selection is persisted so it survives app restarts.
+ */
+
+import type { WorkflowId, WorkflowDef } from '@/types/index'
+import { WORKFLOWS, STORAGE_KEYS } from '@/constants/index'
+import { useStorage } from './useStorage'
+
+export function useWorkflow() {
+  const { loadValue, saveValue } = useStorage()
+
+  // Initialize from storage, fallback to 'general'
+  const activeWorkflowId = ref<WorkflowId>(
+    loadValue<WorkflowId>(STORAGE_KEYS.ACTIVE_WORKFLOW_ID, 'general')
+  )
+
+  // All available workflows (static)
+  const workflows: WorkflowDef[] = WORKFLOWS
+
+  // Computed: the currently active workflow definition
+  const activeWorkflow = computed<WorkflowDef>(() => {
+    const found = workflows.find((w) => w.id === activeWorkflowId.value)
+    return found ?? workflows[0]
+  })
+
+  /**
+   * Select a workflow and persist the choice.
+   */
+  function selectWorkflow(id: WorkflowId): void {
+    activeWorkflowId.value = id
+    saveValue(STORAGE_KEYS.ACTIVE_WORKFLOW_ID, id)
+  }
+
+  return {
+    activeWorkflowId,
+    workflows,
+    activeWorkflow,
+    selectWorkflow,
+  }
+}