Today's rollout of cp_proxy (PR #1095/1096) mounted /cp/* as a
reverse-proxy to the control plane, but the TenantGuard middleware
runs first in the global chain and 404s anything that isn't in its
exact-path allowlist (/health + /metrics). Every /cp/auth/me fetch
from canvas landed on a 40µs 404 before ever reaching the proxy.
/cp/* is handled upstream (WorkOS session + admin bearer), so the
tenant doesn't need to attach org identity for those paths. Passing
them through is correct — matches the design where the tenant
platform is a pure transit layer for /cp/*.
Verified: /cp/auth/me via tunnel now returns 401 (correct unauth
from CP) instead of 404 from TenantGuard.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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