ci(bump-callers): harden the main-tip lookup in the 5 sibling entrypoints (BE-4683) #95

Job	Run time
cursor-review / Gate	4s
cursor-review / Diff size check	0s
cursor-review / Preflight — validate model catalog	0s
cursor-review / ${{ matrix.review_type }} (${{ matrix.model }})	0s
cursor-review / Notify start	0s
cursor-review / Consolidate panel	0s
cursor-review / Notify complete	-1s
	3s

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