Document the completed single-node handoff

[kaikisegfault]

Outcome

Records issue #22 and PR #30 as completed, captures exact post-merge verification and dependency evidence, and makes the four-validator devnet lifecycle the unambiguous next M1 action.

Scope

• update only docs/project/current-state.md
• no protocol, compatibility, economic, dependency, or runtime behavior change
• retain the resource-constrained local execution policy and direct future heavy gates to GitHub-hosted runners

Evidence

• git diff --check
• PR Run the pinned CometBFT single-node vertical #30 exact-head Verify: 30386416963 (all four jobs passed)
• PR Run the pinned CometBFT single-node vertical #30 post-merge Verify: 30386965030 (all four jobs passed)
• hosted resolver: 30386416975 (passed)
• post-merge dependency graph: 30386963131 (passed)
• open Dependabot alerts: 0

Traceability

Post-merge handoff closure for #22.