- Migrated all environment variable access from Node.js `process.env` to Bun runtime `Bun.env` API across the entire codebase.
- Updated 71 files including source code, tests, documentation, and configuration to use Bun's native environment variable API.
- Added comprehensive environment variables documentation in `packages/coding-agent/docs/environment-variables.md` covering 100+ environment variables organized by category.
- Updated CHANGELOG entries to reflect migration from `process.env` to `Bun.env` and environment variable prefix changes (PI_* vs OMP_*).
- Maintained identical behavior and logic across all changes - only the environment variable access method was updated.
- Added automatic extraction of embedded native addon payload to ~/.omp/natives/<version> on first run of compiled binaries.
- Added embed:native build script for generating platform-specific native addon payloads embedded in compiled binaries.
- Enhanced native addon loading to prioritize extracted embedded addon over downloaded versions.
- Improved error messages with platform-specific guidance for compiled vs npm-installed binaries.
- Refactored CI workflow to use reusable build_binary() function for cross-platform binary compilation.
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