Journal was step 5 of the surface-observe pipeline but never ran
because the bail check stopped the pipeline before reaching it.
Split into its own agent with:
- {{conversation:50000}} for recent conversation
- {{bash:poc-memory tail -p surface-observe 10}} for observe context
- {{latest_journal}} for previous entry continuity
Add generic {{bash:COMMAND}} placeholder to agent template resolver
so agents can include shell command output in their prompts.
Remove journal phase from surface-observe.agent (now 4 steps).
