Migrate 54 test call sites to construct NormalizedInput{Text: ...}.
Add invariant tests:
- TestNormalizedInputReachesRouteIntact: ingress NormalizedInput reaches Route
- TestTryFastPathReceivesMatchText: TryFastPath gets the same input
- TestMatchTextDoesNotChangeRouting: same Text + different MatchText → same Decision
- TestDecisionUtteranceEqualsInputText: Decision.Utterance == input.Text
Add the explicit capability-selection boundary between route resolution
and action candidate production. SelectCapability is the single entry
point for selecting which executable capability matched an IntentAct turn.
Three input kinds: raw, llm_text, deterministic. Decision.CapabilitySelection
is the authoritative record; Decision.Slots.Fn/Args/HasFn remain as
compatibility representations populated from the selection.
claude