v1.6.2

Add multi-Worker support with balanced selection and per-Worker lazy failover

This change enables multiple Worker domains and adds lazy failover by temporarily removing failed Workers from rotation via cooldown.

• CLI/config: multiple Worker domains

  • --cf-worker-domain now accepts comma-separated values and repeated flags.
  • TG_CF_WORKER_DOMAIN now supports multiple domains (comma-delimited).
  • Added normalized multi-domain accessor: Config::cf_worker_domains().

• Routing: balanced Worker selection

  • Added balanced_cf_workers(...) (round-robin start index per connection), reusing --cf-balance.
  • Worker attempts now iterate a rotated Worker list, preserving ordered fallback across all configured Workers.

• Failover: lazy per-Worker cooldown

  • Reworked Worker failure tracking from per-DC to per Worker domain.
  • On Worker failure, only that Worker enters cooldown; other Workers remain eligible immediately.

• Operational surface updates

  • Startup logging now lists all configured Worker domains.
  • --check probes all configured Worker domains instead of a single Worker.
  • Docs updated to describe multi-Worker usage and balancing behavior.

# multiple workers, balanced first-try, ordered fallback
tg-ws-proxy \
  --cf-worker-domain w1.user.workers.dev,w2.user.workers.dev \
  --cf-balance