init-first-agent used to double-wire the CLI channel to every new DM
agent as a convenience for `pnpm run chat`, gated by --no-cli-bonus.
With the /new-setup-2 flow gone and a dedicated scratch CLI agent
created earlier in setup:auto, that bonus just stomps on CLI routing
the user already set up. Remove the CLI_CHANNEL/CLI_PLATFORM_ID
constants, ensureCliMessagingGroup, the --no-cli-bonus flag, and the
cli-bonus wiring block.
Pass the paired user's identity through to the welcome delivery so
the sender resolver sees the real owner (e.g. telegram:<id>) instead
of cli:local. Extend the CLI channel's admin-transport payload to
accept optional sender/senderId overrides — falls back to the old
cli/cli:local defaults when omitted, so existing callers are unchanged.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>