fix: increase submit button wait timeout and add fuzzy model id matching

- click_element for Submit Button: internal_timeout 2000ms -> 10000ms
- request_processor: if model id not in parsed_model_list, try fuzzy
  match (e.g. gemini-2.5-flash -> gemini-2.5-flash-preview-04-17)

Author: maebahesioru

src/api/request_processor.py

@@ -114,7 +114,13 @@ async def _analyze_model_requirements(req_id: str, context: dict, request: ChatC
         if parsed_model_list:
             valid_model_ids = [m.get('id') for m in parsed_model_list]
             if requested_model_id not in valid_model_ids:
-                raise HTTPException(status_code=400, detail=f"[{req_id}] Invalid model '{requested_model_id}'. Available models: {', '.join(valid_model_ids)}")
+                # fuzzy match: find model whose id contains the requested id or vice versa
+                fuzzy = next((mid for mid in valid_model_ids if requested_model_id in mid or mid.startswith(requested_model_id.split('-preview')[0])), None)
+                if fuzzy:
+                    logger.info(f'[{req_id}] 模型 "{requested_model_id}" 不在列表中，自动映射到 "{fuzzy}"')
+                    requested_model_id = fuzzy
+                else:
+                    raise HTTPException(status_code=400, detail=f"[{req_id}] Invalid model '{requested_model_id}'. Available models: {', '.join(valid_model_ids)}")
         context['model_id_to_use'] = requested_model_id
         if current_ai_studio_model_id != requested_model_id:
             context['needs_model_switching'] = True

src/browser/page_controller.py

@@ -1079,7 +1079,7 @@ async def submit_prompt(self, prompt: str, image_list: List, check_client_discon
             submitted_successfully = await self._try_shortcut_submit(prompt_textarea_locator, check_client_disconnected)
             if not submitted_successfully:
                 self.logger.info(f'[{self.req_id}] 快捷键提交失败，尝试点击提交按钮...')
-                await click_element(self.page, submit_button_locator, 'Submit Button', self.req_id)
+                await click_element(self.page, submit_button_locator, 'Submit Button', self.req_id, internal_timeout=10000)
                 self.logger.info(f'[{self.req_id}]  提交按钮点击完成。')
             await self._check_disconnect(check_client_disconnected, '提交后')