ci: fix client publishing and release buffers

[dev-jodee]

Summary

• Rename the Rust client crate to subscriptions and the program crate to subscriptions-program
• Harden the Rust publishing workflow with release tests, generated clients, crate dry-run, and trusted publisher token handling
• Package generated Rust client sources and update docs, including the Pinocchio repository link
• Change mainnet release CI to stop at Squads-owned program and IDL buffers, without requiring the Doppler keypair to be a Squads member
• Keep the program lib target name as subscriptions so cargo build-sbf still emits target/deploy/subscriptions.so

Test Plan

• cargo fmt -p subscriptions-program -p tests-subscriptions --check
• cargo check -p subscriptions-program --locked
• cargo check -p subscriptions --locked
• cargo check -p tests-subscriptions --locked
• cargo build-sbf from program/
• cargo test -p tests-subscriptions
• CU_REPORT=1 CU_REPORT_DATE=2026-05-15 cargo test -p tests-subscriptions
• cargo publish --dry-run --manifest-path clients/rust/Cargo.toml --locked --allow-dirty
• pnpm exec prettier --check .github/workflows/publish-rust.yml README.md CLAUDE.md
• pnpm exec prettier --check .github/workflows/release.yml docs/004-program-upgrade-mechanism.md
• YAML parse check for publishing and release workflows
• pre-push hook: 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	2118	2003	0.000005000	0.000005080	0.000006001
close_subscription_authority	7	1881	1916	1886	0.000005000	0.000005075	0.000005943
create_fixed_delegation	38	3619	9621	5190	0.000005001	0.000005207	0.000007595
create_plan	84	3540	11053	4811	0.000005001	0.000005192	0.000007405
create_recurring_delegation	27	3645	12645	6146	0.000005001	0.000005245	0.000008073
delete_plan	8	416	416	416	0.000005000	0.000005016	0.000005208
init_subscription_authority	142	7849	19851	11835	0.000005003	0.000005473	0.000010917
revoke_delegation	19	318	585	420	0.000005000	0.000005016	0.000005210
subscribe	21	6666	12666	7890	0.000005002	0.000005315	0.000008945
transfer_fixed	6	10102	14605	11354	0.000005003	0.000005454	0.000010677
transfer_recurring	17	10212	17799	11748	0.000005003	0.000005469	0.000010874
transfer_subscription	10	10446	13495	11850	0.000005003	0.000005474	0.000010925
update_plan	21	424	500	474	0.000005000	0.000005018	0.000005237

Generated: 2026-05-15