Detect the passport.qianwen.com bridge page after a successful SSO login
and navigate the webContents back to the original returnUrl so account
binding can proceed instead of stalling on the bridge.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Move the Qwen page-state probe, session detection, and silent probe
helpers out of account-binder into apps/desktop-client/src/main/adapters/qwen,
mirroring the Kimi adapter layout. Generic AI auth no longer special-cases
qwen since the platform now owns its own credential rules.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>