feat(wiki): 二十四节气详情抓取百度百科并图文展示

数据源：百度百科开放接口 BaikeLemmaCardApi（无反爬，返回结构化 JSON）
与「历史上的今天」（维基）完全解耦，维基代码原样保留可随时恢复：

服务端：
- WikiEntry 增加 image（配图）和 extra（结构化字段 JSON）字段
- 新建 BaikeTermSyncLog 独立日志表（不污染维基 WikiSyncLog）
- 新建 BaikeTermSyncService 独立同步服务（24 节气，间隔 1.2s）
- 启动时缺详情自动补齐，之后按配置间隔定时增量刷新
- 管理 API：GET/POST /admin/api/wiki/term-sync*

管理后台：
- 百科条目 Tab 顶部加节气同步卡片（X/24 + 状态 + 同步按钮）
- 条目编辑器加配图 URL（含预览）和节气扩展字段编辑

小程序：
- 百科页展开详情图文展示：配图 + 简介 + 物候/习俗/养生等分块

本地验证：24/24 节气抓取成功，image/extra 全部填充，维基数据不受影响

server/web/static/js/pages/Wiki.js

@@ -47,6 +47,27 @@ export default {
 
                 <!-- 百科条目管理 -->
                 <div class="px-4 py-2 sm:px-0" v-if="tab === 'entries'">
+                    <!-- 节气详情同步（百度百科） -->
+                    <div class="bg-white shadow rounded-lg mb-4">
+                        <div class="px-4 py-4 sm:px-6 flex flex-wrap items-center justify-between gap-3">
+                            <div class="flex items-center gap-4">
+                                <div>
+                                    <div class="text-sm font-medium text-gray-900">节气详情（百度百科）</div>
+                                    <div class="text-xs text-gray-500 mt-0.5">
+                                        已含详情 {{ termSync.detailedTerms || 0 }} / {{ termSync.totalTerms || 24 }}
+                                        <span v-if="termSync.lastSync && termSync.lastSync.startedAt"> ｜ 最近同步：{{ formatTime(termSync.lastSync.startedAt) }}</span>
+                                        <span v-if="termSync.lastSync && termSync.lastSync.status" :class="termSync.lastSync.status === 'success' ? 'text-green-600' : 'text-yellow-600'"> ｜ {{ termSync.lastSync.status === 'success' ? '成功' : termSync.lastSync.status === 'partial' ? '部分失败' : '失败' }}</span>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="flex items-center gap-2">
+                                <button @click="loadTermSyncStatus" class="px-3 py-2 border border-gray-300 rounded-md text-sm hover:bg-gray-50">刷新</button>
+                                <button @click="triggerTermSync" :disabled="termSync.running || termSyncing" class="inline-flex items-center px-3 py-2 border border-transparent text-sm font-medium rounded-md text-white bg-red-600 hover:bg-red-700 disabled:opacity-50 disabled:cursor-not-allowed">
+                                    <i class="fas fa-sync mr-1" :class="termSync.running ? 'fa-spin' : ''"></i>{{ termSync.running ? '同步中...' : '同步节气详情' }}
+                                </button>
+                            </div>
+                        </div>
+                    </div>
                     <div class="bg-white shadow rounded-lg">
                         <div class="px-4 py-5 sm:p-6">
                             <div class="flex flex-wrap items-center justify-between gap-3 mb-4">
@@ -170,6 +191,21 @@ export default {
                                 <label class="block text-sm font-medium text-gray-700 mb-1">详细内容</label>
                                 <textarea v-model="editor.form.content" rows="6" class="block w-full rounded-md border border-gray-300 px-3 py-2 text-sm"></textarea>
                             </div>
+                            <div>
+                                <label class="block text-sm font-medium text-gray-700 mb-1">配图 URL</label>
+                                <input v-model="editor.form.image" placeholder="https://..." class="block w-full rounded-md border border-gray-300 px-3 py-2 text-sm"/>
+                                <div v-if="editor.form.image" class="mt-2"><img :src="editor.form.image" class="h-20 rounded border" alt="配图预览"/></div>
+                            </div>
+                            <!-- 节气扩展字段（仅节气分类显示） -->
+                            <div v-if="editor.form.category === 'term'">
+                                <label class="block text-sm font-medium text-gray-700 mb-2">节气扩展信息</label>
+                                <div class="grid grid-cols-2 gap-3">
+                                    <div v-for="f in termExtraFields" :key="f.key">
+                                        <label class="block text-xs text-gray-500 mb-1">{{ f.name }}</label>
+                                        <input v-model="editor.extra[f.key]" class="block w-full rounded-md border border-gray-300 px-2 py-1.5 text-sm"/>
+                                    </div>
+                                </div>
+                            </div>
                             <div class="grid grid-cols-2 gap-4">
                                 <div>
                                     <label class="block text-sm font-medium text-gray-700 mb-1">排序（越小越靠前）</label>
@@ -210,20 +246,39 @@ export default {
             editor: {
                 visible: false,
                 id: null,
-                form: { category: 'other', title: '', brief: '', content: '', sort: 0, status: 1 },
+                form: { category: 'other', title: '', brief: '', content: '', image: '', sort: 0, status: 1 },
+                extra: {},
             },
+            termExtraFields: [
+                { key: 'alias', name: '别名' },
+                { key: 'english', name: '外文名' },
+                { key: 'meaning', name: '涵义' },
+                { key: 'solarDate', name: '公历时间' },
+                { key: 'ecliptic', name: '黄道位置' },
+                { key: 'climate', name: '气候特点' },
+                { key: 'phenology', name: '物候现象' },
+                { key: 'farming', name: '农事活动' },
+                { key: 'customs', name: '传统习俗' },
+                { key: 'health', name: '起居养生' },
+                { key: 'flower', name: '花信' },
+            ],
             saving: false,
             syncing: false,
             syncStatus: {},
             syncTimer: null,
+            termSync: {},
+            termSyncing: false,
+            termSyncTimer: null,
         };
     },
     mounted() {
         this.loadEntries();
         this.loadSyncStatus();
+        this.loadTermSyncStatus();
     },
     beforeUnmount() {
         if (this.syncTimer) clearInterval(this.syncTimer);
+        if (this.termSyncTimer) clearInterval(this.termSyncTimer);
     },
     methods: {
         catName(key) {
@@ -265,22 +320,40 @@ export default {
         openEditor(entry) {
             this.editor.id = entry ? entry.id : null;
             this.editor.form = entry
-                ? { category: entry.category, title: entry.title, brief: entry.brief, content: entry.content, sort: entry.sort, status: entry.status }
-                : { category: 'other', title: '', brief: '', content: '', sort: 0, status: 1 };
+                ? { category: entry.category, title: entry.title, brief: entry.brief, content: entry.content, image: entry.image || '', sort: entry.sort, status: entry.status }
+                : { category: 'other', title: '', brief: '', content: '', image: '', sort: 0, status: 1 };
+            let extra = {};
+            if (entry && entry.extra) {
+                try { extra = JSON.parse(entry.extra); } catch (e) { extra = {}; }
+            }
+            this.editor.extra = extra;
             this.editor.visible = true;
         },
         async saveEntry() {
             const f = this.editor.form;
             if (!f.title.trim()) { alert('标题不能为空'); return; }
+            // 节气分类：把 extra 对象序列化为 JSON 字符串
+            const payload = { ...f };
+            if (f.category === 'term') {
+                const extra = {};
+                this.termExtraFields.forEach(fd => {
+                    const v = (this.editor.extra[fd.key] || '').trim();
+                    if (v) extra[fd.key] = v;
+                });
+                payload.extra = JSON.stringify(extra);
+            } else {
+                payload.extra = '';
+            }
             this.saving = true;
             try {
                 if (this.editor.id) {
-                    await this.api(`/admin/api/wiki/entries/${this.editor.id}`, { method: 'PUT', body: JSON.stringify(f) });
+                    await this.api(`/admin/api/wiki/entries/${this.editor.id}`, { method: 'PUT', body: JSON.stringify(payload) });
                 } else {
-                    await this.api('/admin/api/wiki/entries', { method: 'POST', body: JSON.stringify(f) });
+                    await this.api('/admin/api/wiki/entries', { method: 'POST', body: JSON.stringify(payload) });
                 }
                 this.editor.visible = false;
                 this.loadEntries();
+                this.loadTermSyncStatus();
             } catch (e) {
                 alert(e.message);
             } finally {
@@ -322,5 +395,31 @@ export default {
                 this.syncing = false;
             }
         },
+        async loadTermSyncStatus() {
+            try {
+                this.termSync = await this.api('/admin/api/wiki/term-sync-status');
+                if (this.termSync.running && !this.termSyncTimer) {
+                    this.termSyncTimer = setInterval(() => this.loadTermSyncStatus(), 5000);
+                } else if (!this.termSync.running && this.termSyncTimer) {
+                    clearInterval(this.termSyncTimer);
+                    this.termSyncTimer = null;
+                }
+            } catch (e) {
+                console.error(e);
+            }
+        },
+        async triggerTermSync() {
+            if (!confirm('将从百度百科抓取 24 节气的详细图文（约 30 秒），确认执行？')) return;
+            this.termSyncing = true;
+            try {
+                await this.api('/admin/api/wiki/term-sync', { method: 'POST' });
+                this.loadTermSyncStatus();
+                setTimeout(() => this.loadEntries(), 3000);
+            } catch (e) {
+                alert(e.message);
+            } finally {
+                this.termSyncing = false;
+            }
+        },
     },
 }