移除对 copilot 的兼容。更新示例和文档，统一使用 session_id 代替 conversationId

src/routes/chat.ts

@@ -8,7 +8,7 @@ import { type ChatSessionBridge } from "../chat/sessionBridge.js";
 
 const payloadSchema = z.object({
   message: z.string().min(1).max(10000),
-  conversation_id: z.string().max(128).optional(),
+  session_id: z.string().max(128).optional(),
 });
 
 export const buildChatRouter = (
@@ -36,7 +36,7 @@ export const buildChatRouter = (
       const traceId = req.header("x-trace-id") ?? undefined;
 
       const { binding, requestContext, created } = await sessionBridge.resolve({
-        conversationId: parsed.data.conversation_id,
+        clientSessionId: parsed.data.session_id,
         accessToken,
         projectId,
         traceId,
@@ -44,7 +44,7 @@ export const buildChatRouter = (
 
       logger.info(
         {
-          conversationId: requestContext.conversationId,
+          clientSessionId: requestContext.clientSessionId,
           sessionId: binding.sessionId,
           created,
           traceId: requestContext.traceId,
@@ -53,7 +53,7 @@ export const buildChatRouter = (
         "processing chat request",
       );
 
-      // 当前先走“发送 prompt 后回读最近消息”的兼容实现。
+      // 当前先走“发送 prompt 后回读最近消息”的 opencode SDK 实现。
       // 后续切到真正的 opencode 事件流时，只需要替换这里的取数方式。
       const messages = await runtime.sendPrompt(binding.sessionId, parsed.data.message);
       const assistantMessage = messages.find(
@@ -66,13 +66,13 @@ export const buildChatRouter = (
       res.setHeader("Connection", "keep-alive");
       res.setHeader("X-Accel-Buffering", "no");
 
-      const conversationId = requestContext.conversationId;
+      const clientSessionId = requestContext.clientSessionId;
       const parts = assistantMessage?.parts ?? [];
       const textContent = collectTextContent(parts);
       if (textContent) {
         res.write(
           toSse("token", {
-            conversationId,
+            session_id: clientSessionId,
             content: textContent,
           }),
         );
@@ -81,7 +81,7 @@ export const buildChatRouter = (
       for (const toolCall of collectToolCalls(parts)) {
         res.write(
           toSse("tool_call", {
-            conversationId,
+            session_id: clientSessionId,
             tool: toolCall.tool,
             params: toolCall.params,
           }),
@@ -91,7 +91,7 @@ export const buildChatRouter = (
       if (assistantMessage?.info.role === "assistant" && assistantMessage.info.error) {
         res.write(
           toSse("error", {
-            conversationId,
+            session_id: clientSessionId,
             message: getErrorMessage(assistantMessage.info.error),
             detail: assistantMessage.info.error.name,
           }),
@@ -99,13 +99,13 @@ export const buildChatRouter = (
       } else if (!assistantMessage) {
         res.write(
           toSse("error", {
-            conversationId,
+            session_id: clientSessionId,
             message: "assistant response unavailable",
             detail: "no assistant message found after prompt",
           }),
         );
       } else {
-        res.write(toSse("done", { conversationId }));
+        res.write(toSse("done", { session_id: clientSessionId }));
       }
 
       res.end();
@@ -125,7 +125,7 @@ export const buildChatRouter = (
 const toSse = (event: string, data: Record<string, unknown>) =>
   `event: ${event}\ndata: ${JSON.stringify(data)}\n\n`;
 
-// 先把 opencode 的 Part 结构压平成前端当前消费的 SSE 语义。
+// 先把 opencode 的 Part 结构压平成 Agent API 的 SSE 语义。
 const collectTextContent = (parts: Part[]) =>
   parts
     .filter((part): part is Extract<Part, { type: "text" }> => part.type === "text")