* test: shorten loopback token fixtures below secret-scanner thresholds
* feat: carry gateway client capabilities through the CLI loopback backend
CLI-backed model runs now transport the originating client's declared
capabilities along the existing per-field loopback contract: RunCliAgentParams
gains clientCaps, prepare emits OPENCLAW_MCP_CLIENT_CAPS, the loopback header
template forwards x-openclaw-client-caps, the request context parses and
normalizes it (grant-authenticated callers keep ignoring spoofable headers),
and the loopback tool cache keys on a stable caps serialization so capless and
capped requests never share tool lists. Capability-gated tools such as
show_widget now work on CLI backends; the CLI session binding hash includes
caps, consistent with messageProvider. Cron and command-attempt runs stay
capless (fail closed).
Fixes#102577
b5ba0771f9
