perf: shave ~5s off chat — shorter waits, non-blocking delete, lower timeouts

deepseek_browser.py

@@ -76,12 +76,12 @@ class DeepSeekBrowser:
             viewport={"width": 1280, "height": 720}, locale="zh-CN", args=args,
         )
         self.page = await self.context.new_page()
-        await self.page.goto(self.DEEPSEEK_URL, timeout=30000)
+        await self.page.goto(self.DEEPSEEK_URL, timeout=20000)
         await self._wait_for_cloudflare()
         await self._check_login_state()
 
     async def _wait_for_cloudflare(self):
-        deadline = time.time() + 25
+        deadline = time.time() + 15
         last_url = ""
         while time.time() < deadline:
             try:
@@ -216,7 +216,7 @@ class DeepSeekBrowser:
                 await btn.click()
                 await self.page.wait_for_selector("textarea", timeout=10000)
                 return
-            await self.page.goto(self.DEEPSEEK_URL, timeout=30000)
+            await self.page.goto(self.DEEPSEEK_URL, timeout=20000)
             await self.page.wait_for_selector("textarea", timeout=15000)
         except Exception as e:
             logger.error("New chat error: %s", e)
@@ -353,7 +353,7 @@ class DeepSeekBrowser:
 
     async def _wait_for_response(self, timeout, prompt=""):
         deadline = time.time() + timeout
-        await asyncio.sleep(0.8)
+        await asyncio.sleep(0.3)
         last_answer, last_thinking, stable = "", "", 0
         while time.time() < deadline:
             try:
@@ -372,7 +372,7 @@ class DeepSeekBrowser:
                     last_answer, last_thinking, stable = answer, thinking, 0
                 else:
                     stable += 1
-                if stable >= 3:
+                if stable >= 2:
                     return {"content": last_answer, "reasoning_content": last_thinking}
             await asyncio.sleep(0.5)
         if last_answer or last_thinking:
@@ -390,7 +390,7 @@ class DeepSeekBrowser:
             await inp.press("Enter")
             deadline = time.time() + timeout
             last_thinking, last_answer, stable = "", "", 0
-            await asyncio.sleep(0.8)
+            await asyncio.sleep(0.3)
             while time.time() < deadline:
                 try:
                     result = await self.page.evaluate(self._EXTRACT_JS)
@@ -415,13 +415,10 @@ class DeepSeekBrowser:
                     last_answer, stable = answer, 0
                 elif answer:
                     stable += 1
-                if stable >= 3:
+                if stable >= 2:
                     break
                 await asyncio.sleep(0.3)
-            try:
-                await self.delete_chat()
-            except Exception as e:
-                logger.warning("[stream_message] cleanup error: %s", e)
+            asyncio.create_task(self._safe_delete_chat())
         except Exception as e:
             logger.error("Stream message error: %s", e)
             raise