This mode replicates the opencode + omo plugin

Key features

• opencode + omo system prompt — the real opencode default.txt persona (tone, style, proactiveness, conventions, code style, task guidance) + omo's Sisyphus orchestrator identity, declared as the complete system prompt: the dsh harness identity and runtime-context snapshot are suppressed for this mode.
• Both use deepseek-official/deepseek-v4-pro (dpsk v4 pro)
• Alignedopencode default persona (complete system prompt + live env block whose provider/model now follow the same per-step route as the actual request — session live model selection or the role primary/fallback — so prompt and request cannot split
• The loop shim additionally prepends opencode's live environment block (exact model id, working dir, workspace root, git, platform, date, recomputed every step).