Fix HLS browser in prod e stabilizza broadcast RTMP su iOS.

Il proxy Rails gestisce il redirect MediaMTX su /live/match_* e riscrive le playlist; edge nginx reindirizza /live/ sotto /hls/. Su iOS, SessionBuilder HaishinKit, pipeline mixer corretta e refresh token.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/config/routes.rb

@@ -109,6 +109,16 @@ Rails.application.routes.draw do
   end
 
   get "hls/*path", to: "hls_proxy#show", format: false, constraints: { path: /.+/ }
+  # MediaMTX HLS cookie redirect → /live/match_{uuid}/… (edge o browser dopo 302).
+  get "live/match_:session_id",
+      to: "hls_proxy#live_match",
+      format: false,
+      constraints: { session_id: /[0-9a-f-]{36}/i },
+      defaults: { segments: "index.m3u8" }
+  get "live/match_:session_id/*segments",
+      to: "hls_proxy#live_match",
+      format: false,
+      constraints: { session_id: /[0-9a-f-]{36}/i, segments: /.+/ }
 
   get "live", to: "public/live#index", as: :public_live_index
   get "live/:id", to: "public/live#show", as: :public_live