check_decision
Deep-dive into a specific decision/anchor — its state, premises, drift edges, and pending candidates.
Returns the full context for one truth-map node: what was decided, why, what reality says, whether it's drifting, and what actions are pending.
WHEN TO CALL:
- When the user asks about a specific decision ("what happened with X?")
- Before resolving a drift signal — understand the full picture first
- When reviewing premises of a decision ("is this still true?")