增加注入提示词功能

static/admin.css

@@ -19,8 +19,8 @@ code{background:var(--input);padding:1px 5px;border-radius:4px;font-size:12px;fo
 .field{margin-bottom:16px}
 .field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;font-weight:500}
 .input-wrap{position:relative}
-.input-wrap input,.input-wrap select{width:100%;background:var(--input);border:1px solid var(--border);border-radius:8px;padding:10px 14px;color:var(--text);font-size:14px;outline:none;transition:border-color .2s}
-.input-wrap input:focus,.input-wrap select:focus{border-color:var(--primary)}
+.input-wrap input,.input-wrap select,.input-wrap textarea{width:100%;background:var(--input);border:1px solid var(--border);border-radius:8px;padding:10px 14px;color:var(--text);font-size:14px;outline:none;transition:border-color .2s}
+.input-wrap input:focus,.input-wrap select:focus,.input-wrap textarea:focus{border-color:var(--primary)}
 .input-wrap .eye{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--muted);cursor:pointer;padding:4px;font-size:16px}
 select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238899ab'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}
 
@@ -61,6 +61,7 @@ main{padding:28px 0 60px}
 .tag-responses{background:rgba(59,130,246,.15);color:#60a5fa}
 .tag-auto{background:rgba(139,92,246,.15);color:#a78bfa}
 .tag-override{background:rgba(59,130,246,.1);color:var(--primary)}
+.tag-instructions{background:rgba(234,179,8,.15);color:var(--yellow)}
 .mapping-actions{margin-left:auto;display:flex;gap:6px}
 .empty{text-align:center;padding:40px;color:var(--muted)}
 

static/admin.html

@@ -115,6 +115,24 @@
         <button class="eye" onclick="togglePwd('mKey')">&#128065;</button>
       </div>
     </div>
+    <div class="field">
+      <label>自定义指令 <span style="color:var(--muted)">（可选）</span></label>
+      <div class="input-wrap"><textarea id="mInstructions" rows="5" placeholder="注入到请求中的自定义系统指令&#10;&#10;Responses 格式 → 写入 instructions 字段（developer 级别）&#10;Chat Completions 格式 → 注入为首条 system 消息&#10;Anthropic 格式 → 写入 system 字段" style="resize:vertical;min-height:80px"></textarea></div>
+      <div class="hint">
+        每个模型可单独配置。指令会被注入到发往上游的请求中，模型会无条件信任该内容。<br>
+        适用场景：自定义人格、解除限制、注入 CTF 环境假设等。
+      </div>
+    </div>
+    <div class="field">
+      <label>注入位置</label>
+      <div class="input-wrap">
+        <select id="mInsPosition">
+          <option value="prepend">前置（推荐，优先级更高）</option>
+          <option value="append">后置</option>
+        </select>
+      </div>
+      <div class="hint">前置：自定义指令放在系统提示词最前面，模型优先看到；后置：放在末尾</div>
+    </div>
     <div class="modal-footer">
       <button class="btn btn-ghost" onclick="closeModal()">取消</button>
       <button class="btn btn-primary" id="modalSaveBtn" onclick="saveMapping()">保存</button>

static/admin.js

@@ -137,6 +137,7 @@ async function loadMappings() {
         ? 'responses'
         : backend;
     const hasOverride = m.target_url || m.api_key;
+    const hasInstructions = !!m.custom_instructions;
     return `<div class="mapping-item">
       <div class="mapping-top">
         <span class="mapping-name">${esc(name)}</span>
@@ -145,6 +146,7 @@ async function loadMappings() {
         <div class="mapping-meta">
           <span class="tag ${tagClass}">${tagLabel}</span>
           ${hasOverride ? '<span class="tag tag-override">自定义地址</span>' : ''}
+          ${hasInstructions ? '<span class="tag tag-instructions">自定义指令</span>' : ''}
         </div>
         <div class="mapping-actions">
           <button class="btn btn-ghost btn-sm" onclick="openEditModal('${esc(name)}')">编辑</button>
@@ -167,6 +169,8 @@ function openAddModal() {
   document.getElementById('mBackend').value = 'auto';
   document.getElementById('mUrl').value = '';
   document.getElementById('mKey').value = '';
+  document.getElementById('mInstructions').value = '';
+  document.getElementById('mInsPosition').value = 'prepend';
   document.getElementById('modal').classList.add('active');
 }
 
@@ -183,6 +187,8 @@ async function openEditModal(name) {
     document.getElementById('mBackend').value = m.backend || 'auto';
     document.getElementById('mUrl').value = m.target_url || '';
     document.getElementById('mKey').value = m.api_key || '';
+    document.getElementById('mInstructions').value = m.custom_instructions || '';
+    document.getElementById('mInsPosition').value = m.instructions_position || 'prepend';
     document.getElementById('modal').classList.add('active');
   } catch (e) {
     toast('错误: ' + e.message, false);
@@ -206,6 +212,8 @@ async function saveMapping() {
     backend: document.getElementById('mBackend').value,
     target_url: document.getElementById('mUrl').value.trim(),
     api_key: document.getElementById('mKey').value.trim(),
+    custom_instructions: document.getElementById('mInstructions').value,
+    instructions_position: document.getElementById('mInsPosition').value,
   };
 
   try {