- Add _coerce_float() module-level helper: catches TypeError/ValueError from
non-numeric LLM output (e.g. 'high', 'N/A') and returns a caller-supplied
default instead of raising.
- Replace float(item.get('confidence', 0.5)) with
_coerce_float(item.get('confidence'), 0.5) in _parse_response.
- Guard supporting_cluster_ids: tuple(item.get(...) or []) so a JSON null
from the LLM does not cause TypeError('NoneType is not iterable').
- runbook_refs is hardcoded as () and not sourced from LLM output; no change
needed there.
- Add test_non_numeric_confidence_uses_default (Test 10) to cover the 'high'
string case: asserts no exception and confidence == 0.5.
- 341 tests passing (+1).
Closes: #29
pyr0ball
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