feat: add EscalateAction HITL middleware action for guardrails [AL-28… #4605

Job	Run time
discover-testcases	4s
company-research-agent / staging	1m 18s
debug-breakpoints / alpha	1m 10s
chat-models / staging	1m 42s
dev-console / alpha	2m 29s
multimodal-invoke / alpha	2m 29s
chat-models / cloud	1m 40s
debug-breakpoints / cloud	58s
company-research-agent / cloud	1m 14s
chat-models / alpha	2m 8s
debug-breakpoints / staging	1m 7s
init-flow / alpha	1m 4s
simple-local-mcp / staging	58s
ticket-classification / alpha	57s
multimodal-invoke / cloud	2m 34s
init-flow / staging	1m 6s
dev-console / cloud	2m 35s
company-research-agent / alpha	1m 21s
simple-local-mcp / alpha	58s
ticket-classification / staging	58s
template-agent / staging	1m 34s
template-agent / cloud	1m 26s
multimodal-invoke / staging	2m 26s
ticket-classification / cloud	57s
template-agent / alpha	1m 30s
simple-local-mcp / cloud	53s
init-flow / cloud	1m 4s
dev-console / staging	2m 26s
	41m 6s

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