Promote to production: file-transfer mobile reconnect fix - #69
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…e tab Reported: opening the native file dialog on mobile disconnects the peer and it can't reconnect. On a phone the file picker backgrounds the browser tab, which drops the WebRTC connection to 'disconnected' — and the hook treated that as a terminal error with no recovery. Fixes: - Treat ICE 'disconnected' as transient: a 5s grace period to self-heal, then re-establish through signaling (reconnect + renegotiate) instead of erroring. 'failed' re-establishes immediately. Manual mode (no server) still errors. - Re-establishment reconnects signaling on demand (signaling is closed once P2P is up to avoid churn) and re-negotiates a fresh peer; robust to either side reconnecting first. - Cap consecutive re-establish attempts (4) → clear 'add a TURN server' error instead of an infinite reconnect loop on unconnectable networks. - Let the sender pick the file WHILE waiting for the peer (queueFile); it auto-sends the moment the channel opens — sidesteps the picker-backgrounding race entirely for the common flow. DO relay re-verified via local wrangler dev. 539 tests · lint clean · build green. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
…nnect fix(file-transfer): survive file-picker backgrounding (mobile reconnect)
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Syncs main with production. Fixes the sender's file-picker backgrounding the tab and dropping the peer with no recovery.
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