feat: require exact Codex residency resume

agent-identity: mbp2025.direct.omp.bn5hrz39
agent-persona: generalist
agent-supervisor: unavailable
agent-tool: OMP
agent-tool-version: 18.1.7
agent-runtime: OMP 18.1.7
tooling-profile: dotfiles@4816a7a

Author: schickling-assistant