v0.10.2

fastagent now runs under Bun, not only Node.

• proxy.ts imported { install } from undici (missing in Bun's shim) — a link-time crash. Namespace import + Bun guard (Bun's native fetch honors proxy env + gzip).
• process.loadEnvFile (Node-only) → a portable loadEnvFile matching Node's precedence on both axes, verified differentially.

Verified end-to-end under Bun 1.3: info, invoke, start (/health, telegram). Enables FROM oven/bun + bunx fastagent start. No breaking changes.