fix: reduce timeout to 15s, fail fast when cookies missing + YouTube blocks

add /subs endpoint with language priority + cookies support

fix: use base64 encoding to preserve newlines in app.py

add /subs endpoint with language priority + cookies support for bot detection bypass

add bgutil-ytdlp-pot-provider plugin to bypass YouTube datacenter IP blocks

simplify: single client (tv) default, 120s timeout, configurable via ?client=

try multiple YouTube player clients (web, tv, android, ios, mweb) to bypass IP blocks

fix: increase timeout to 180s, skip extractor update on first run

fix: add YAML frontmatter to README (HF Space config)

deploy: yt-dlp proxy + Dockerfile

initial commit