use original request sources for endpoint conditions

frontend/src/api/endpoints/types/provider.ts

@@ -140,7 +140,7 @@ export interface BodyRuleConditionLeaf {
   path: string
   op: BodyRuleConditionOp
   value?: unknown  // exists / not_exists 不需要 value
-  source?: 'original' | 'current'
+  source?: 'request_headers'  // 不填表示请求体；填 request_headers 表示请求头
 }
 
 export interface BodyRuleConditionAll {

frontend/src/features/providers/components/EndpointConditionEditor.vue

@@ -127,17 +127,17 @@
           <SelectValue />
         </SelectTrigger>
         <SelectContent>
-          <SelectItem value="current">
-            Current
+          <SelectItem value="body">
+            请求体
           </SelectItem>
-          <SelectItem value="original">
-            Original
+          <SelectItem value="request_headers">
+            请求头
           </SelectItem>
         </SelectContent>
       </Select>
       <Input
         :model-value="modelValue.path"
-        :placeholder="pathHint || '字段路径'"
+        :placeholder="modelValue.source === 'request_headers' ? 'Header 名称' : (pathHint || '字段路径')"
         size="sm"
         class="flex-1 min-w-[120px] h-7 text-xs"
         @update:model-value="(value) => updateLeafField('path', value)"

frontend/src/features/providers/components/EndpointFormDialog.vue

@@ -635,14 +635,14 @@
                                 <code>in</code> 在列表中（值填 <code>["a","b"]</code>）<br>
                                 <code>type_is</code> 类型判断（string/number/boolean/array/object/null）<br>
                                 条件路径支持 <code>$item.xxx</code> 引用通配符当前元素<br>
-                                可切换 <code>Current</code>/<code>Original</code> 数据源，并支持 <code>ALL</code>/<code>ANY</code> 组合条件
+                                可切换 <code>请求体</code>/<code>请求头</code> 数据源，并支持 <code>ALL</code>/<code>ANY</code> 组合条件
                               </div>
                             </div>
                             <div class="text-muted-foreground">
-                              规则按顺序执行，前面的修改对后续规则可见。
+                              规则按顺序执行；条件判断使用客户端原始请求体或原始请求头，不受前面规则修改影响。
                             </div>
                             <div class="text-muted-foreground">
-                              规则默认在格式转换后按目标提供商结构匹配；条件切到 <code>Original</code> 时则按客户端原始请求体匹配。
+                              条件默认按客户端原始请求体匹配；切到 <code>请求头</code> 时按客户端原始请求头匹配。
                             </div>
                           </div>
                         </PopoverContent>
@@ -1484,8 +1484,8 @@ function validateJsonConditionShape(condition: Record<string, unknown>, label: s
   if (typeof condition.op !== 'string' || !CONDITION_JSON_OPS.has(condition.op)) {
     return `${label}.op 无效`
   }
-  if (condition.source !== undefined && condition.source !== 'original' && condition.source !== 'current') {
-    return `${label}.source 只能是 original/current`
+  if (condition.source !== undefined && condition.source !== 'request_headers') {
+    return `${label}.source 只能是 request_headers；请求体条件不要填写 source`
   }
   return null
 }

frontend/src/features/providers/components/endpoint-rule-condition.ts

@@ -1,6 +1,6 @@
 import type { BodyRuleCondition, BodyRuleConditionOp } from '@/api/endpoints'
 
-export type ConditionSource = 'current' | 'original'
+export type ConditionSource = 'body' | 'request_headers'
 export type ConditionGroupMode = 'all' | 'any'
 
 export interface EditableConditionLeaf {
@@ -46,7 +46,7 @@ export function createEmptyConditionLeaf(): EditableConditionLeaf {
     path: '',
     op: 'eq',
     value: '',
-    source: 'current',
+    source: 'body',
   }
 }
 
@@ -86,6 +86,7 @@ export function conditionToEditable(condition?: BodyRuleCondition | null): Edita
       condition.any.map(child => conditionToEditable(child) || createEmptyConditionLeaf()),
     )
   }
+  const source = (condition as { source?: unknown }).source
   return {
     kind: 'leaf',
     path: condition.path || '',
@@ -93,7 +94,9 @@ export function conditionToEditable(condition?: BodyRuleCondition | null): Edita
     value: condition.value !== undefined
       ? (typeof condition.value === 'string' ? condition.value : JSON.stringify(condition.value))
       : '',
-    source: condition.source === 'original' ? 'original' : 'current',
+    source: source === 'request_headers' || source === 'headers'
+        ? 'request_headers'
+        : 'body',
   }
 }
 
@@ -114,7 +117,7 @@ export function editableConditionToApi(node: EditableConditionNode | null): Body
   const base = {
     path,
     op: node.op,
-    ...(node.source === 'original' ? { source: 'original' as const } : {}),
+    ...(node.source === 'request_headers' ? { source: 'request_headers' as const } : {}),
   }
 
   if (node.op === 'exists' || node.op === 'not_exists') {