eporner: stream through the server; the signed CDN links are IP-locked

The redirect proxy from 6ba65f1 still played the one-minute "watch on
eporner.com" clip away from home: checked from foreign networks
(check-host.net nodes in BR/DE/HU), a freshly signed link answers 302 ->
static.eporner.com/na.mp4, while the IP that resolved it gets the file. A
redirect therefore only works for a player behind the server's public IP.

/proxy/eporner/{alnum_id}/{height}.mp4 now streams the mp4: resolves the
link (cached 90 min, re-resolved when the CDN answers with a redirect),
forwards Range, and returns a sized body so 206 responses keep
Content-Length. It is no longer a redirect proxy, so app clients keep the
URLs in formats. Verified locally: HEAD, 0-1, mid-file and open-ended ranges
return 206 with Content-Length/Content-Range and valid MP4 data.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MUYdCh2nCVsQYgJAT7gwSi

src/proxies/mod.rs

@@ -1,7 +1,6 @@
 use crate::proxies::archivebate::ArchivebateProxy;
 use crate::proxies::clapdat::ClapdatProxy;
 use crate::proxies::doodstream::DoodstreamProxy;
-use crate::proxies::eporner::EpornerProxy;
 use crate::proxies::heavyfetish::HeavyfetishProxy;
 use crate::proxies::hqporner::HqpornerProxy;
 use crate::proxies::pornhd3x::Pornhd3xProxy;
@@ -73,7 +72,6 @@ pub enum AnyProxy {
     ThaipornTv(ThaipornTvProxy),
     Tube8(Tube8Proxy),
     Supjav(SupjavProxy),
-    Eporner(EpornerProxy),
 }
 
 pub trait Proxy {
@@ -100,7 +98,6 @@ impl Proxy for AnyProxy {
             AnyProxy::ThaipornTv(p) => p.get_video_url(url, requester).await,
             AnyProxy::Tube8(p) => p.get_video_url(url, requester).await,
             AnyProxy::Supjav(p) => p.get_video_url(url, requester).await,
-            AnyProxy::Eporner(p) => p.get_video_url(url, requester).await,
         }
     }
 }