0.2.72

What's new

• Paid requests stay reliable under heavy parallel use. Many requests to one seller at once no longer stall, fail with "payment negotiation failed", or drop a payment channel while it is being topped up.
• Buyers top up a channel's reserve in step with how much work they have in flight, so long agent runs keep going without pauses.
• After the app reconnects, requests wait briefly for the previous channel to close and continue on a new one instead of returning an error.
• Model and provider panels show each seller's measured performance over the last hour: success rate, time to first token and output speed. Routing starts from those numbers for sellers it has not used yet.