feat: 模板配置页（上传文件、自动识别占位符、字段映射）

renderer/src/pages/TemplateConfig.jsx

@@ -1 +1,147 @@
-export default function TemplateConfig() { return <div>TemplateConfig</div>; }
+import React, { useState, useEffect } from "react";
+import { useNavigate, useParams } from "react-router-dom";
+import FieldMappingEditor from "../components/FieldMappingEditor";
+
+export default function TemplateConfig() {
+  const navigate = useNavigate();
+  const { id } = useParams();
+  const isEdit = Boolean(id);
+
+  const [name, setName] = useState("");
+  const [grp, setGrp] = useState("");
+  const [filePath, setFilePath] = useState("");
+  const [fields, setFields] = useState([]);
+  const [autoDetected, setAutoDetected] = useState([]);
+  const [saving, setSaving] = useState(false);
+
+  useEffect(() => {
+    if (isEdit) {
+      window.api.listTemplates().then((templates) => {
+        const t = templates.find((t) => t.id === id);
+        if (t) {
+          setName(t.name);
+          setGrp(t.grp || "");
+          setFilePath(t.file_path);
+          setFields(t.fields || []);
+        }
+      });
+    }
+  }, [id]);
+
+  async function handleSelectFile() {
+    const path = await window.api.selectFile([
+      { name: "Excel 文件", extensions: ["xlsx"] },
+    ]);
+    if (!path) return;
+    setFilePath(path);
+    const result = await window.api.parseTemplate(path);
+    if (result.placeholders?.length > 0) {
+      setAutoDetected(result.placeholders);
+      const detected = result.placeholders.map((p) => ({
+        name: p.name,
+        type: "text",
+        sheet: p.sheet,
+        cell: p.cell,
+      }));
+      setFields((prev) => {
+        const existing = prev.map((f) => f.name);
+        const newOnes = detected.filter((d) => !existing.includes(d.name));
+        return [...prev, ...newOnes];
+      });
+    }
+  }
+
+  async function handleSave() {
+    if (!name.trim() || !filePath) return alert("请填写模板名称并选择文件");
+    setSaving(true);
+    try {
+      if (!isEdit) {
+        const tempId = Date.now().toString();
+        const storedPath = await window.api.copyFileToAppData(filePath, tempId);
+        await window.api.saveTemplate({ name, grp, file_path: storedPath, fields });
+      } else {
+        await window.api.updateTemplate(id, { name, grp, fields });
+      }
+      navigate("/templates");
+    } finally {
+      setSaving(false);
+    }
+  }
+
+  return (
+    <div className="min-h-screen bg-gray-50 p-8">
+      <div className="max-w-2xl mx-auto bg-white rounded-lg border p-6 space-y-6">
+        <div className="flex items-center justify-between">
+          <h1 className="text-xl font-bold">{isEdit ? "编辑模板" : "新建模板"}</h1>
+          <button onClick={() => navigate("/templates")} className="text-gray-400 hover:text-gray-600 text-sm">
+            ← 返回
+          </button>
+        </div>
+
+        <div className="space-y-4">
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">模板名称</label>
+            <input
+              value={name}
+              onChange={(e) => setName(e.target.value)}
+              className="w-full border rounded px-3 py-2 text-sm"
+              placeholder="如：月度报告模板"
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">分组（可选）</label>
+            <input
+              value={grp}
+              onChange={(e) => setGrp(e.target.value)}
+              className="w-full border rounded px-3 py-2 text-sm"
+              placeholder="如：财务部"
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">Excel 模板文件</label>
+            <div className="flex gap-2">
+              <input
+                readOnly
+                value={filePath}
+                className="flex-1 border rounded px-3 py-2 text-sm bg-gray-50"
+                placeholder="点击右侧按钮选择文件..."
+              />
+              <button
+                onClick={handleSelectFile}
+                className="border rounded px-4 py-2 text-sm hover:bg-gray-100"
+              >
+                选择文件
+              </button>
+            </div>
+            {autoDetected.length > 0 && (
+              <p className="text-xs text-green-600 mt-1">
+                已自动识别 {autoDetected.length} 个占位符
+              </p>
+            )}
+          </div>
+
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-2">字段映射</label>
+            <FieldMappingEditor fields={fields} onChange={setFields} />
+          </div>
+        </div>
+
+        <div className="flex justify-end gap-2 pt-4 border-t">
+          <button
+            onClick={() => navigate("/templates")}
+            className="border rounded px-4 py-2 text-sm hover:bg-gray-100"
+          >
+            取消
+          </button>
+          <button
+            onClick={handleSave}
+            disabled={saving}
+            className="bg-blue-600 text-white rounded px-4 py-2 text-sm hover:bg-blue-700 disabled:opacity-50"
+          >
+            {saving ? "保存中..." : "保存模板"}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}