* fix(epistemic): make empty resonance evidence undetermined
* fix(evals): classify verified realizer failures separately
* fix(packs): treat absent domain manifests as valid noop
* test(packs): cover missing manifests and scope boundary domains
* test(epistemic): cover phase 2 known bug fixes
* fix(vault): make FALSIFIED exclusion explicit in _status_admits
FALSIFIED entries previously fell through to the ADMISSIBLE_AS_EVIDENCE
set-check, which excluded them correctly but left the distinction between
CONTRADICTED (FALSIFIED) and UNVERIFIED-POSSIBLE (SPECULATIVE) implicit.
Add an early guard so FALSIFIED is explicitly rejected before the tier
filter, matching the CONTRADICTED semantics from the epistemic taxonomy.
