baseline: Clover 独立仓库首次基线提交

将 Clover 从上层产品包旧仓库中独立出来,建立专属版本控制。
当前状态=纵切片端到端已打通(登录→选品→出文出图→审核→下载包),
M1文案质量去套路化已验收。此提交作为后续按核销清单逐条修复的基线。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/app/tasks/new/page.tsx

@@ -0,0 +1,99 @@
+'use client';
+/**
+ * 屏2 开新任务（熟手 /tasks/new）
+ * 使用 NewTaskForm + ConfigPreviewPanel + RecentTasksBar + FlywheelBanner
+ */
+import { useEffect, useState } from 'react';
+import { useRouter } from 'next/navigation';
+import { ProgressBar } from '@/components/layout/ProgressBar';
+import { FlywheelBanner } from '@/components/FlywheelBanner';
+import { ConfigPreviewPanel } from '@/components/tasks/ConfigPreviewPanel';
+import { RecentTasksBar } from '@/components/tasks/RecentTasksBar';
+import { NewTaskForm } from '@/components/tasks/NewTaskForm';
+import { api } from '@/lib/api';
+import { Product, CreateTaskRequest } from '@/types/index';
+import { PaginatedResponse } from '@/types/index';
+import { usePreferenceStore } from '@/stores/preferenceStore';
+import { getErrorAction } from '@/types/errors';
+import { ApiError } from '@/types/index';
+
+export default function NewTaskPage() {
+  const router = useRouter();
+  const { context } = usePreferenceStore();
+  const [products, setProducts] = useState<Product[]>([]);
+  const [selectedProduct, setSelectedProduct] = useState<Product | null>(null);
+  const [form, setForm] = useState<Omit<CreateTaskRequest, 'product_id'>>({
+    benchmark_ids: [],
+    theme: '',
+    text_count: 8,
+    image_count: 6,
+    track: 'ai',
+    need_product_image: true,
+  });
+  const [submitting, setSubmitting] = useState(false);
+  const [error, setError] = useState('');
+
+  useEffect(() => { loadProducts(); }, []);
+
+  async function loadProducts() {
+    try {
+      const data = await api.get<PaginatedResponse<Product>>('/api/v1/products');
+      setProducts(data.items);
+      if (data.items.length > 0) setSelectedProduct(data.items[0]);
+    } catch {
+      // ignore
+    }
+  }
+
+  async function handleSubmit(e: React.FormEvent, track: 'ai' | 'import') {
+    e.preventDefault();
+    if (!selectedProduct) { setError('请选择产品'); return; }
+    if (!form.theme.trim()) { setError('请填写今天主题'); return; }
+    // 禁降级：产品入镜但该产品没传参考图 → 拦在前端，引导去上传
+    if (form.need_product_image && !selectedProduct.image_path) {
+      setError('该产品还没上传参考图，无法生成产品入镜内容。请先到「配置-产品库」上传产品图，或关闭下方「产品入镜」开关。');
+      return;
+    }
+    setSubmitting(true);
+    setError('');
+    try {
+      const req: CreateTaskRequest = { product_id: selectedProduct.id, ...form, track };
+      const data = await api.post<{ id: number }>('/api/v1/tasks', req);
+      router.push(`/tasks/${data.id}/text`);
+    } catch (err) {
+      const apiErr = err as ApiError;
+      setError(apiErr?.message || getErrorAction(apiErr?.code).message);
+    } finally {
+      setSubmitting(false);
+    }
+  }
+
+  return (
+    <div className="flex flex-col h-full">
+      <ProgressBar currentStep={1} />
+      {context && <FlywheelBanner context={context} />}
+
+      <div className="flex flex-1 overflow-hidden">
+        {/* 主表单区 */}
+        <div className="flex-1 p-6 overflow-auto">
+          <h2 className="text-xl font-bold text-text-primary mb-6">开新任务</h2>
+          <NewTaskForm
+            products={products}
+            selectedProduct={selectedProduct}
+            onSelectProduct={setSelectedProduct}
+            form={form}
+            onFormChange={(patch) => setForm((f) => ({ ...f, ...patch }))}
+            submitting={submitting}
+            error={error}
+            onSubmitAi={(e) => handleSubmit(e, 'ai')}
+            onSubmitImport={(e) => handleSubmit(e, 'import')}
+          />
+          <div className="mt-8"><RecentTasksBar /></div>
+        </div>
+
+        {/* 右侧配置预览面板 */}
+        {selectedProduct && <ConfigPreviewPanel product={selectedProduct} />}
+      </div>
+    </div>
+  );
+}