show reasoning in frontend and some other stuff

src/routes/chats.js

@@ -22,7 +22,8 @@ const sendMessageValidator = (body) => {
     if (!chatId) return {error: "chatId is required"};
     if (!message) return {error: "message is required"};
     if (body.webSearch !== undefined && typeof body.webSearch !== "boolean") return {error: "webSearch must be a boolean"};
-    return {value: {message, chatId, model: String(body?.model || "qwen3:14b"), webSearch: body.webSearch === true}};
+    if (body.reasoning !== undefined && typeof body.reasoning !== "boolean") return {error: "reasoning must be a boolean"};
+    return {value: {message, chatId, model: String(body?.model || "qwen3:14b"), webSearch: body.webSearch === true, reasoning: body.reasoning === true}};
 };
 
 const organizationValidator = (body) => ({
@@ -236,7 +237,8 @@ export function createChatsRouter({repositories, chatService, modelService, conf
                 targetMessage,
                 content: req.validatedBody.message,
                 model: req.validatedBody.model,
-                webSearch: req.validatedBody.webSearch
+                webSearch: req.validatedBody.webSearch,
+                reasoning: req.validatedBody.reasoning
             });
             if (result.error) return res.status(result.status).json({error: result.error});
             return res.json(result);
@@ -431,7 +433,8 @@ export function createChatsRouter({repositories, chatService, modelService, conf
         res.writeHead(200, {
             "Content-Type": "text/event-stream",
             "Cache-Control": "no-cache, no-transform",
-            Connection: "keep-alive"
+            Connection: "keep-alive",
+            "X-Accel-Buffering": "no"
         });
 
         const sendEvent = (event, data) => {
@@ -449,6 +452,7 @@ export function createChatsRouter({repositories, chatService, modelService, conf
                 onChunk: (chunk, fullReply) => sendEvent("chunk", {chunk, fullReply}),
                 onThinking: (chunk, fullThinking) => sendEvent("thinking", {chunk, fullThinking}),
                 webSearch: req.validatedBody.webSearch,
+                reasoning: req.validatedBody.reasoning,
                 onStatus: (status) => sendEvent("status", status),
                 signal: generationController.signal
             });