fix: bgutil-ytdlp-pot-provider ile PO-token duvarını aş

Cookie bot-check'i çözdü ama "The page needs to be reloaded" hatası
kalıcıydı — YouTube artık proof-of-origin token da istiyor. Coolify
stack'ine brainicism/bgutil-ytdlp-pot-provider sidecar servisi
(sc_pot_provider, port 4416) eklendi, api-daemon imajına Python
plugin'i kuruldu, her yt-dlp çağrısına
--extractor-args youtubepot-bgutilhttp:base_url=... eklendi.
ytdlpCookieArgs -> ytdlpAntiBotArgs olarak birleştirildi.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/api-daemon/src/ytdlpCookies.ts

@@ -4,11 +4,13 @@ import { env } from "./env";
 const COOKIES_PATH = "/tmp/yt-cookies.txt";
 
 /**
- * YouTube increasingly bot-checks yt-dlp requests from datacenter IPs
- * ("Sign in to confirm you're not a bot"), which no --extractor-args
- * combination reliably bypasses. An authenticated session's cookies avoid
- * the check. The cookies file is never committed — it's decoded once at
- * startup from a Coolify-managed env var into a local temp file.
+ * YouTube's anti-bot layer against datacenter IPs has two parts, both
+ * needed together: a "Sign in to confirm you're not a bot" wall (avoided
+ * with an authenticated session's cookies) and a "The page needs to be
+ * reloaded" proof-of-origin token check (avoided by querying the
+ * bgutil-ytdlp-pot-provider sidecar — see docker-compose.yml sc_pot_provider).
+ * The cookies file is never committed — it's decoded once at startup from a
+ * Coolify-managed env var into a local temp file.
  */
 const cookiesFilePath: string | null = env.ytdlpCookiesB64
   ? (() => {
@@ -17,6 +19,16 @@ const cookiesFilePath: string | null = env.ytdlpCookiesB64
     })()
   : null;
 
-export function ytdlpCookieArgs(): string[] {
-  return cookiesFilePath ? ["--cookies", cookiesFilePath] : [];
+export function ytdlpAntiBotArgs(): string[] {
+  const args: string[] = [];
+
+  if (cookiesFilePath) {
+    args.push("--cookies", cookiesFilePath);
+  }
+
+  if (env.ytdlpPotProviderUrl) {
+    args.push("--extractor-args", `youtubepot-bgutilhttp:base_url=${env.ytdlpPotProviderUrl}`);
+  }
+
+  return args;
 }