dev-workflow-start-implementation

# Start Implementation Use the supplied issue number. Follow the canonical procedure in the plugin's `commands/start-implementation.md` exactly, with this Codex-specific replacement for its two Claude workflow commands: ```bash pnpm --dir "$(git rev-parse --show-toplevel)/tools/dev-workflow-v2" run codex-workflow init pnpm --dir "$(git rev-parse --show-toplevel)/tools/dev-workflow-v2" run codex-workflow record-issue <issue-number> ``` The shared command reads Codex's `CODEX_THREAD_ID`. Do not read a session ID from hook output or substitute any other value.