test(ci): ruleset-parameter sync test — every context.thresholds.<name> has a ParameterTable entry

Per-program integration test that asserts every context.thresholds.<name> referenced by a JDM ruleset has a corresponding entry in the service's ParameterTable. Stronger than the existing lint-inputs pattern (Step 1.3 of the ADR-011 sweep) because it catches ruleset → parameter drift at compile time rather than runtime.

Extracted from adr-011-hardcoded-policy-values-sweep.adoc § Potential Improvements.