fix: adapt to new AI Studio login flow (#77)

* feat: adapt to new AI Studio login flow

- Update target URL to new AI Studio app endpoint
- Add "Continue to the app" button handler
- Remove manual script injection (app has built-in WebSocket client)
- Simplify initialization flow for faster startup

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat: add robust WebSocket initialization monitoring and error recovery

- Add _checkPageErrors() to detect common initialization errors
- Add _waitForWebSocketInit() to monitor browser console logs
- Detect "System initialization complete" for success
- Detect "System initialization failed" for failure
- Check for page errors every second during 60s timeout
- Auto-refresh page on errors (applet failed, concurrent updates, snapshot failed)
- Implement 3-retry mechanism with page refresh between attempts
- Apply to both launchOrSwitchContext and attemptLightweightReconnect

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat: add health monitor initialization and restart logic

* refactor: simplify WebSocket initialization monitoring and improve flag handling

* refactor: improve WebSocket initialization flow and flag handling

* refactor: enhance WebSocket flag initialization, reuse console listener, and ensure consistent flag resets

* refactor: deprecate WS_PORT env variable, enforce fixed WebSocket port 9998, and update documentation

* chore: remove WS_PORT customization, enforce fixed WebSocket endpoint at 127.0.0.1:9998

* refactor: replace local logger import with class-level logger in ConfigLoader

* fix: correct target URL and simplify app ID validation

* fix: reorder initialization flow with URL validation after popup handling

* fix: skip redundant WebSocket initialization if already completed

* fix: reset WebSocket flags before re-navigation to prevent stale state

* fix: adjust popup handling order to ensure correct URL validation before interactions

* chore: filter out expected WebGL not supported warning in logs

* fix: replace page reload with navigation to target URL for improved popup handling

* fix: add random mouse movement simulation during wait to enhance human-like interaction

* refactor: implement navigation verification and retry mechanism for correct page loading

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: bbbugg

.env.example

@@ -9,6 +9,8 @@ PORT=7860
 HOST=0.0.0.0
 
 # WebSocket server port for internal browser communication
+# ⚠️ DEPRECATED: This environment variable is no longer supported in the current version
+# The WebSocket port is now fixed at 9998 and cannot be customized
 WS_PORT=9998
 
 # ===================================

README.md

@@ -249,13 +249,14 @@ sudo docker compose down
 
 #### 🗒️ 其他配置
 
-| 变量名                     | 描述                                                                                | 默认值   |
-| :------------------------- | :---------------------------------------------------------------------------------- | :------- |
-| `STREAMING_MODE`           | 流式传输模式。`real` 为真流式，`fake` 为假流式。                                    | `real`   |
-| `FORCE_THINKING`           | 强制为所有请求启用思考模式。                                                        | `false`  |
-| `FORCE_WEB_SEARCH`         | 强制为所有请求启用网络搜索。                                                        | `false`  |
-| `FORCE_URL_CONTEXT`        | 强制为所有请求启用 URL 上下文。                                                     | `false`  |
-| `CAMOUFOX_EXECUTABLE_PATH` | Camoufox 浏览器的可执行文件路径（支持绝对或相对路径）。仅在手动下载浏览器时需配置。 | 自动检测 |
+| 变量名                     | 描述                                                                                | 默认值     |
+| :------------------------- | :---------------------------------------------------------------------------------- | :--------- |
+| `STREAMING_MODE`           | 流式传输模式。`real` 为真流式，`fake` 为假流式。                                    | `real`     |
+| `FORCE_THINKING`           | 强制为所有请求启用思考模式。                                                        | `false`    |
+| `FORCE_WEB_SEARCH`         | 强制为所有请求启用网络搜索。                                                        | `false`    |
+| `FORCE_URL_CONTEXT`        | 强制为所有请求启用 URL 上下文。                                                     | `false`    |
+| `CAMOUFOX_EXECUTABLE_PATH` | Camoufox 浏览器的可执行文件路径（支持绝对或相对路径）。仅在手动下载浏览器时需配置。 | 自动检测   |
+| ~~`WS_PORT`~~              | ~~WebSocket 服务器端口。~~ **⚠️ 已弃用：此环境变量不再支持，端口固定为 9998。**     | ~~`9998`~~ |
 
 ### 🧠 模型列表配置
 

README_EN.md

@@ -254,6 +254,7 @@ This endpoint forwards requests to the official Gemini API format endpoint.
 | `FORCE_WEB_SEARCH`         | Force enable web search for all requests.                                                                                  | `false`       |
 | `FORCE_URL_CONTEXT`        | Force enable URL context for all requests.                                                                                 | `false`       |
 | `CAMOUFOX_EXECUTABLE_PATH` | Path to the Camoufox browser executable (supports both absolute and relative paths). Only required if manually downloaded. | Auto-detected |
+| ~~`WS_PORT`~~              | ~~WebSocket server port.~~ **⚠️ Deprecated: This environment variable is no longer supported. Port is fixed at 9998.**     | ~~`9998`~~    |
 
 ### 🧠 Model List Configuration
 

scripts/client/build.js

@@ -98,7 +98,7 @@ const Logger = {
 
 class ConnectionManager extends EventTarget {
     // [BrowserManager Injection Point] Do not modify the line below.
-    // This line is dynamically replaced by BrowserManager.js based on WS_PORT environment variable.
+    // WebSocket endpoint is now fixed at ws://127.0.0.1:9998 and cannot be customized.
     constructor(endpoint = "ws://127.0.0.1:9998") {
         super();
         this.endpoint = endpoint;