C1 (Critical): getStudioSession was stamped with the same
TECH_LOG_STUDIO_SESSION auth profile as every other Studio operation, and
that profile requires the CSRF header it is getStudioSession's own job to
issue -- an unconditional cycle that recursed without bound in HTTP mode.
Fixed with a credential-free TECH_LOG_STUDIO_BOOTSTRAP auth profile for
getStudioSession alone, a synchronous re-entrancy guard in
createCsrfTokenProvider as defense in depth, and a throwing stub in place of
the prior `let x!: T` assertion. Added a composition-level regression test
that wires the real executor, CSRF provider, and credential-attach function
together and proves getStudioSession dispatches exactly once while its token
reaches both a JSON operation and the multipart upload.
Also: invalidate the cached CSRF token on a 401/403 from the upload path
(I2), a throwing useStudioAssetGateway() accessor so Task 11 cannot silently
compile a null-gateway UI (I3), and the M1-M5 minors from the review (guard
a malformed success body, cover the untested error fallbacks, align aborted
uploads with the JSON path's non-retryable CANCELLED mapping, derive the
credential header name from one source instead of two, and correct the
adapter review doc's operation count).
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
