KKND2 mission. You are the qwen2.5-coder:14b coding agent.

Work ONLY in /home/vx/src/openkknd-qwen14b (seeded from openkknd). Read MISSION.md.

Tasks:
1) cd /home/vx/src/openkknd-qwen14b
2) Use exec: ./build.sh — fix compile/link errors with real file edits
3) After green build: git init if needed, commit "kknd2: green build"
4) Write/update README.md (build + run)
5) Optional: fix cheap warnings (MAX_PARTICLES redefine) after green build

Do not touch /home/vx/openkknd or other openkknd-* trees.
Use tools (exec, read, write, edit). Report what you did and build status.