Release 2.11.0: publish the kit-8 peer + consume node-sdk 2.7.8

[vvillait88]

Summary

Releases @agent-score/commerce 2.11.0, publishing the coordinated kit-8 lift that has been on main since #121 (the published 2.10.0 predates it). Also consumes the just-published @agent-score/sdk 2.7.8 and refreshes the safe deps within range.

• @solana/kit peer: >=7.0.0 <8.0.0 -> >=8.0.0 <9.0.0, with viem 2.56.1, mppx 0.9.1, @x402/* 2.24.0 (the coupled settle set, verified by a live all-rails settle: Base, Tempo, Solana).
• @agent-score/sdk: ^2.7.7 -> ^2.7.8.
• bun update refreshed hono 4.13.5, jose 6.2.10, @a2a-js/sdk 1.1.0, @types/node 26.4.0, knip 6.33.0, lefthook 2.1.12, typescript-eslint 8.68.0. The exact-pinned coupled set (viem, mppx) stayed put.

Type of change

• Breaking change (existing callers must update)
• Bug fix (no breaking change)
• New feature (no breaking change)
• Docs, tests, or internal maintenance only

Public API

The @solana/kit peer range moves off 7 onto 8: a consumer on @solana/kit 7 must upgrade to 8 to satisfy the peer. No exported types or function signatures change; the surface is the peer requirement. All AgentScore storefronts already run @solana/kit 8.

Test plan

Ran bun run build, bun run typecheck, bun run lint, bun run test: build (dts) succeeds, typecheck and lint clean, 1824 tests pass (4 skipped). The kit-8 lift was verified end to end with a live all-rails settle from the smoke wallet before this release.

Checklist

• Tests cover the new behavior, and the suite passes locally
• Lint, format, and type checks pass
• Docs and README examples updated if the public surface changed
• No secrets, credentials, or personal data in the diff or the tests