v0.10.13

Added

• Added language-specific LLM guidance files for TypeScript services, Rust
  services, and Svelte browser apps that consume Trellis.

Changed

• Updated service-development AI guidance and the service AGENTS.md template
  to point agents at focused Trellis service, browser-app, and verification
  rules.

Fixed

• Fixed Trellis contract event subject parameter validation for union payload
  schemas so anyOf and oneOf event variants are accepted only when every
  branch exposes the routed JSON Pointer as a string, number, or integer token.