Wrap CallToolRequest handler with withSentryTransaction for
per-tool tracing. Remove broken $(vault) DSN from .env.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add gateway-first pattern: when AGILITON_API_KEY is set, route all
external API calls through the gateway with X-API-Key auth. Falls back
to direct API access when gateway is unavailable.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>