feat: add sticky per-account proxy support with VNC binding and local bypass

[MaziarAshtari]

What does this PR do?

Adds sticky per-account proxy support so each Google account always uses
the same proxy from proxylist.txt.

Features:

• Reads proxylist.txt and assigns proxies to accounts persistently
  via proxy_mapping.json
• Supports formats: user:pass@ip:port, ip:port:user:pass,
  ip:port, http://user:pass@ip:port
• VNC account binding now also uses a sticky proxy (not just API contexts)
• Local addresses (127.0.0.1, localhost, 0.0.0.0) bypass the proxy
  to prevent WebSocket connection failures
• If no free proxy is available, VNC returns an error instead of
  falling back to direct connection
• Configurable via STICKY_PROXY_BYPASS environment variable

Files changed:

• src/utils/StickyProxyManager.js (new)
• src/core/BrowserManager.js
• src/auth/CreateAuth.js
• README_EN.md

Tested:

• Docker deployment with 99 proxies in proxylist.txt
• VNC account binding with proxy works (Google login succeeds)
• API requests work with sticky proxy + local bypass

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Don't collapse non-email account labels

When two valid auth files have the same non-email accountName (for example the bundled auth saver uses "unknown" when email detection fails, or a user enters the same manual label twice), AuthSource still treats them as distinct accounts because it only canonicalizes email-looking names. This key generation collapses both to one mapping entry, so _getProxyMapping() assigns one proxy and getProxyForAuth() returns that same proxy for both accounts, breaking the promised per-account proxy isolation. Include the auth index in the key for non-email labels, or mirror AuthSource's email-only normalization.

Useful? React with 👍 / 👎.

[rb05180518]

What does this PR do?

Adds sticky per-account proxy support so each Google account always uses the same proxy from proxylist.txt.

Features:

• Reads proxylist.txt and assigns proxies to accounts persistently
  via proxy_mapping.json
• Supports formats: user:pass@ip:port, ip:port:user:pass,
  ip:port, http://user:pass@ip:port
• VNC account binding now also uses a sticky proxy (not just API contexts)
• Local addresses (127.0.0.1, localhost, 0.0.0.0) bypass the proxy
  to prevent WebSocket connection failures
• If no free proxy is available, VNC returns an error instead of
  falling back to direct connection
• Configurable via STICKY_PROXY_BYPASS environment variable

Files changed:

• src/utils/StickyProxyManager.js (new)
• src/core/BrowserManager.js
• src/auth/CreateAuth.js
• README_EN.md

Tested:

• Docker deployment with 99 proxies in proxylist.txt
• VNC account binding with proxy works (Google login succeeds)
• API requests work with sticky proxy + local bypass

Hi, have you ever encountered the 'queue closed' issue?