perf(test): consolidate agent runtime contract targets #4260

Job	Run time
Frontend Build	4m 0s
CLI Tests (ubuntu-latest)	7m 9s
Shell Deploy Scripts	13s
Rust Build Check (macos-15)	15m 37s
Rust Build Check (ubuntu-latest)	8m 58s
CLI Tests (macos-15)	6m 5s
Rust Build Check (windows-latest)	21m 38s
	1h 3m 40s

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