feat: IPv6 outbound rotation via curl --interface

- Add IPv6SourcePool for round-robin IP rotation
- fetchViaCurl: Bun.spawn + curl -6 --interface for source binding
- Auto-fallback to regular fetch when IPv6 connection fails
- Response decompression via --compressed flag
- Docker + GHCR build/deploy workflows
- 8 routable IPv6 addresses on VPS

proxy.txt

@@ -1,10 +0,0 @@
-38.154.203.95:5863:eoimpusi:27ije2xpgvl9
-198.105.121.200:6462:eoimpusi:27ije2xpgvl9
-64.137.96.74:6641:eoimpusi:27ije2xpgvl9
-209.127.138.10:5784:eoimpusi:27ije2xpgvl9
-38.154.185.97:6370:eoimpusi:27ije2xpgvl9
-84.247.60.125:6095:eoimpusi:27ije2xpgvl9
-142.111.67.146:5611:eoimpusi:27ije2xpgvl9
-191.96.254.138:6185:eoimpusi:27ije2xpgvl9
-31.58.9.4:6077:eoimpusi:27ije2xpgvl9
-104.239.107.47:5699:eoimpusi:27ije2xpgvl9