Add new `default_mode` config section with two boolean fields:
- `ultrawork`: Auto-inject ultrawork mode prompt on main session start
without requiring the "ultrawork"/"ulw" keyword. Wired through the
keyword-detector hook — injects once per session, respects existing
guards (non-OMO agents, planner agents, subagent sessions).
- `ralph_loop`: Auto-start ralph loop on first main session message
without requiring /ralph-loop or /ulw-loop commands. When ultrawork
is also enabled, the loop starts in ultrawork mode.
Usage:
```jsonc
{
"default_mode": {
"ultrawork": true, // Always get ultrawork prompt on start
"ralph_loop": true // Auto-start ralph loop
}
}
```
Files: 7 modified/added, ~65 LOC added.
herjarsa