The local merge brought Task 4 and Task 6 helpers into the same middleware package, and both introduced a generic firstNonBlank helper. Renaming the Muse-specific helper keeps the merged branch buildable without changing behavior.
Constraint: This fix is on top of the local merge to home and must avoid altering the request-context logic itself
Rejected: Rolling back the Muse relay context feature | merge target should stay functional after the requested local merge
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep package-local helper names specific enough to survive future feature merges
Tested: go test ./service ./middleware ./relay/common ./controller -count=1
Not-tested: Live relay request after the local merge
0f90d2b725