fix: 术语表导入丢失中文列(BOM) + 导出改用数据库实际内容

- handleGlossaryFiles: 加 transformHeader 剥离BOM+规范化表头，
  修复Excel/PapaParse读取带BOM的CSV时第一列名变成 zh 导致中文列被丢弃
- exportGlossaryCsv: 改为从 /service/glossary 拉取数据库实际内容再导出，
  避免导出未保存的本地脏数据；导出文件加UTF-8 BOM保证Excel中文不乱码
- 导入成功后提示已导入条数并提醒保存

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docutranslate/static/i18nData.json

@@ -185,7 +185,8 @@
     "glossaryExportCsv": "导出CSV",
     "glossaryUnsaved": "未保存",
     "glossarySaved": "术语表已保存，对所有用户生效。",
-    "glossarySaveFailed": "保存失败"
+    "glossarySaveFailed": "保存失败",
+    "glossaryImported": "已导入 {n} 条术语，请点击【保存】使其对所有用户生效。"
   },
   "en": {
     "pageTitle": "DocuTranslate - Interactive Document Translation",
@@ -373,7 +374,8 @@
     "glossaryExportCsv": "Export CSV",
     "glossaryUnsaved": "Unsaved",
     "glossarySaved": "Glossary saved and applied to all users.",
-    "glossarySaveFailed": "Save failed"
+    "glossarySaveFailed": "Save failed",
+    "glossaryImported": "Imported {n} terms. Click [Save] to apply to all users."
   },
   "id": {
     "pageTitle": "DocuTranslate - Terjemahan Dokumen Interaktif",
@@ -561,6 +563,7 @@
     "glossaryExportCsv": "Ekspor CSV",
     "glossaryUnsaved": "Belum disimpan",
     "glossarySaved": "Glosarium disimpan, berlaku untuk semua pengguna.",
-    "glossarySaveFailed": "Gagal menyimpan"
+    "glossarySaveFailed": "Gagal menyimpan",
+    "glossaryImported": "Mengimpor {n} istilah. Klik [Simpan] untuk berlaku ke semua pengguna."
   }
 }

docutranslate/static/index.html

@@ -1427,15 +1427,22 @@
                     glossarySaving.value = false;
                 }
             };
-            const exportGlossaryCsv = () => {
-                const rows = glossaryRows.value;
+            const exportGlossaryCsv = async () => {
+                // 从服务端拉取数据库实际内容再导出（避免导出未保存的本地脏数据）
+                let rows = glossaryRows.value;
+                try {
+                    const res = await fetch('/service/glossary');
+                    const data = await res.json();
+                    if (data && Array.isArray(data.rows)) rows = data.rows;
+                } catch (e) { console.error('export fetch failed, using local', e); }
                 const esc = (s) => {
                     s = String(s||'');
                     return /[",\n]/.test(s) ? '"' + s.replace(/"/g,'""') + '"' : s;
                 };
-                let csv = 'zh,en,id\n';
+                let csv = 'zh,en,id\n';
                 rows.forEach(r => { csv += [esc(r.zh), esc(r.en), esc(r.id)].join(',') + '\n'; });
-                const blob = new Blob([csv], {type: 'text/csv;charset=utf-8'});
+                // 加 UTF-8 BOM，保证 Excel 正确识别中文
+                const blob = new Blob(['' + csv], {type: 'text/csv;charset=utf-8'});
                 const url = URL.createObjectURL(blob);
                 const a = document.createElement('a');
                 a.href = url; a.download = 'glossary.csv'; a.click();
@@ -1448,8 +1455,11 @@
                 Array.from(files).forEach(f => {
                     Papa.parse(f, {
                         header: true, skipEmptyLines: true,
+                        // 剥离 BOM + 规范化表头（小写、去空白），兼容 Excel 另存的 CSV
+                        transformHeader: (h) => String(h||'').replace(/^/, '').trim().toLowerCase(),
                         complete: (res) => {
                             if (!res.data) return;
+                            let added = 0;
                             res.data.forEach(r => {
                                 const row = {zh:'', en:'', id:''};
                                 if ('zh' in r || 'en' in r || 'id' in r) {
@@ -1461,8 +1471,10 @@
                                 if (row.zh || row.en || row.id) {
                                     glossaryRows.value.push(row);
                                     glossaryDirty.value = true;
+                                    added++;
                                 }
                             });
+                            if (added) alert(t('glossaryImported').replace('{n}', added));
                         }
                     });
                 });