ci(bump-callers): harden the main-tip lookup in the 5 sibling entrypoints (BE-4683) #96

Job	Run time
cursor-review / Gate	5s
cursor-review / Diff size check	5s
cursor-review / Preflight — validate model catalog	7s
cursor-review / Notify start	5s
cursor-review / adversarial (gpt-5.6-sol-max)	24s
cursor-review / edge-case (claude-opus-4-8-thinking-max)	2m 40s
cursor-review / adversarial (claude-opus-4-8-thinking-max)	1m 50s
cursor-review / adversarial (gemini-3.1-pro)	1m 20s
cursor-review / edge-case (gpt-5.6-sol-max)	28s
cursor-review / edge-case (kimi-k2.7-code)	1m 4s
cursor-review / adversarial (kimi-k2.7-code)	1m 24s
cursor-review / edge-case (gemini-3.1-pro)	2m 33s
cursor-review / Consolidate panel	28s
cursor-review / Notify complete	5s
	12m 38s

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