ci: split workflows around just recipes

[dev-jodee]

Summary

• replace the monolithic CI workflow with split Build, Format, Lint, Test, and Benchmark workflows
• keep the shared setup action, but move workflow behavior to just recipes instead of raw cargo/pnpm commands
• add a just check-generated recipe and wire IDL Check through it
• remove generated-client/client-dist/program artifact handoff from CI jobs in favor of self-contained just recipes

Test Plan

• just fmt-check
• just check-generated
• just lint-check
• just build
• pre-push hook passed: format check and lint check

[github-actions]

Compute Unit Report

Instruction	Samples	Min CUs	Max CUs	Avg CUs	Est Cost (Low) [SOL]	Est Cost (Med) [SOL]	Est Cost (High) [SOL]
cancel_subscription	11	1805	2129	2013	0.000005000	0.000005080	0.000006006
close_subscription_authority	7	1881	1916	1886	0.000005000	0.000005075	0.000005943
create_fixed_delegation	38	3621	9649	5190	0.000005001	0.000005207	0.000007595
create_plan	84	3540	11053	5007	0.000005001	0.000005200	0.000007503
create_recurring_delegation	27	3640	11145	4924	0.000005001	0.000005196	0.000007462
delete_plan	8	416	416	416	0.000005000	0.000005016	0.000005208
init_subscription_authority	142	9351	21373	12374	0.000005003	0.000005494	0.000011187
revoke_delegation	19	318	585	420	0.000005000	0.000005016	0.000005210
subscribe	21	6670	12694	7751	0.000005002	0.000005310	0.000008875
transfer_fixed	6	10094	10097	10096	0.000005003	0.000005403	0.000010048
transfer_recurring	17	10206	14797	12531	0.000005003	0.000005501	0.000011265
transfer_subscription	10	10473	11986	11080	0.000005003	0.000005443	0.000010540
update_plan	21	424	503	476	0.000005000	0.000005019	0.000005238

Generated: 2026-04-30