refactor: centralize llm backend configuration

admin/dashboard/templates/system_status.html

@@ -29,6 +29,29 @@
             <iframe ref="monitorFrame" src="{{ src_url }}" frameborder="0"></iframe>
         </div>
     </el-card>
+
+    <el-card class="workspace-card" shadow="hover">
+        <div slot="header" class="workspace-header">
+            <div>
+                <h3>全局配置</h3>
+                <p>集中维护 `config.yaml`，其中 `llm.backends` 用于统一管理所有模型后端。</p>
+            </div>
+            <div class="page-hero-actions">
+                <el-button size="mini" plain @click="loadSystemConfig">刷新配置</el-button>
+                <el-button size="mini" type="success" @click="saveSystemConfig">保存配置</el-button>
+            </div>
+        </div>
+        <div class="config-meta" v-if="configPath">
+            <span>配置文件：{% raw %}{{ configPath }}{% endraw %}</span>
+            <span v-if="llmBackends.length">LLM 后端：{% raw %}{{ llmBackends.join(', ') }}{% endraw %}</span>
+        </div>
+        <el-input
+            type="textarea"
+            v-model="systemConfigText"
+            :rows="18"
+            placeholder="请输入 YAML 格式的全局配置">
+        </el-input>
+    </el-card>
 </div>
 {% endblock %}
 
@@ -42,11 +65,15 @@
                 currentView: '14',
                 showTimeRangeSelector: false,
                 frameUrl: '{{ src_url }}',
-                restarting: false
+                restarting: false,
+                systemConfigText: '',
+                configPath: '',
+                llmBackends: []
             }
         },
         mounted() {
             this.currentView = '14';
+            this.loadSystemConfig();
         },
         methods: {
             reloadIframe() {
@@ -81,6 +108,35 @@
                 } finally {
                     this.restarting = false;
                 }
+            },
+            async loadSystemConfig() {
+                try {
+                    const response = await axios.get('/api/system/config/raw');
+                    if (response.data.success) {
+                        this.systemConfigText = response.data.data || '';
+                        this.configPath = response.data.path || '';
+                        this.llmBackends = response.data.llm_backends || [];
+                    } else {
+                        this.$message.error(response.data.message || '读取全局配置失败');
+                    }
+                } catch (error) {
+                    this.$message.error(error.response?.data?.message || '读取全局配置失败');
+                }
+            },
+            async saveSystemConfig() {
+                try {
+                    const response = await axios.post('/api/system/config/update', {
+                        config_text: this.systemConfigText
+                    });
+                    if (response.data.success) {
+                        this.$message.success(response.data.message || '保存成功');
+                        this.loadSystemConfig();
+                    } else {
+                        this.$message.error(response.data.message || '保存失败');
+                    }
+                } catch (error) {
+                    this.$message.error(error.response?.data?.message || '保存失败');
+                }
             }
         }
     });
@@ -108,5 +164,7 @@
     .iframe-shell-card .el-card__body { height: calc(100% - 73px); }
     .iframe-shell { height: 100%; border-radius: 18px; overflow: hidden; border: 1px solid rgba(148,163,184,0.12); background: rgba(248,250,252,0.82); }
     .iframe-shell iframe { width: 100%; height: 100%; border: none; display: block; background: #fff; }
+    .workspace-card .el-card__body { display: flex; flex-direction: column; gap: 12px; }
+    .config-meta { display: flex; justify-content: space-between; gap: 12px; color: #64748b; font-size: 12px; }
 </style>
 {% endblock %}