v0.2.5-pre

Reliability fixes for connections, calls, and background battery use.

WebRTC data transport

• A connection attempt that stalls now fails cleanly and retries, instead of leaking a connection and getting stuck on Connecting….
• The chat header tells couldn't connect directly — you may both be on mobile data apart from they're offline; a brief network blip no longer flashes a failure.
• Connected now means the channel can actually carry a message.

Calls

• An unanswered outgoing call stops on its own instead of ringing forever.
• A second incoming call while you're already on one no longer disrupts the call in progress.
• Ending or declining a call tears down cleanly (no spurious reconnect attempts).

Background / battery

• With no network, Aurora waits quietly and resumes the instant connectivity returns, rather than repeatedly reaching for the server.

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Pre-alpha for testers — please don't rely on it for sensitive communication yet.