v0.13.0

Changelog

• 83d4b05: agentos: wire Python (uv) + mise toolchains (bashy python/pip/uv/mise) (@qiangli)
• 44991c3: agentos: wire Rust (cargo/rustc/rustup) + Java (java/javac/mvn) toolchains (@qiangli)
• 99a52d2: agentos: wire the Node.js toolchain ecosystem (bashy node/npm/npx/pnpm/yarn) (@qiangli)
• 0b4d5b4: chore: align coreutils pin (actrunner extraEnv for OTel) (@qiangli)
• 78374be: chore: bump coreutils pin (CI-green: Windows sdlc test fix) for the v0.13.0 release (@qiangli)