[andresTabiTuwien]

Summary

Fixes two evaluator functions that could report wrong results and removes placeholder evaluator functions that returned fixed PASS/FAIL results without checking anything.

• costEntityValuesPresent could return PASS for a DMP with incomplete cost entries, because the last entry overwrote the result.
• contributorValuesPresent (test "Roles in RDM Defined", metric role.co.1) only checked that the contributor list was not empty and never looked at roles.
• Three placeholder functions returned hard-coded results and could make an evaluation look like it passed or failed when nothing was checked.

Related Issue

Changes

• costEntityValuesPresent (DCSCompletenessEvaluator): every cost entry is checked and logged; the test returns PASS only if all entries have title, description, value and currency_code. Empty cost lists and entries that are not JSON
  objects return FAIL.
• contributorValuesPresent (DCSCompletenessEvaluator): each contributor must have at least one non-blank role (DCS 1.2 role field). The test returns FAIL if there are no contributors, or if any contributor has no role, an empty
  list, a role that isn't a list, or a blank entry. Each failing contributor is listed in affectedElements and guidance. The function name is unchanged, so the deployed test 68bf0fdbd66a3009c09e6825 keeps working.
• Removed placeholders: CompletenessEvaluator.testFuntion (always FAIL), and evaluateCoherentLicense in ComplianceEvaluator and in FeasibilityEvaluator (always PASS). No seeded or deployed test references them;