Support omp (oh-my-pi) as a runtime #5

What you're trying to do

I run omp (oh-my-pi), a fork of Pi, as my daily coding agent. Link drives Pi but can't launch omp, so I can't reach my omp sessions from the web client or a Sesame agent.

What would help

Support omp as a runtime: either sesame-link omp, or a setting that points the Pi runtime at the omp executable.

The second may be the smaller change. omp takes the same -e/--extension, --session-dir, and --mode rpc flags as Pi, and its extension API has the pi.on("session_start"), pi.registerCommand, and pi.sendUserMessage hooks Link's Pi extension calls. What differs: the executable is omp, omp --version prints omp/18.11.3, and config lives in ~/.omp/agent instead of ~/.pi/agent. I haven't tested a shim that aliases omp as pi.

Area

Pi

Environment

• Sesame Link 0.1.33 (release), macOS arm64
• omp 18.11.3