v2.1.4 — Kanban audit fixes + README cleanup

Changes

• Fixed 9 test regressions (955 tests passing)
• Updated thermal_runaway.py default thresholds
• Fixed cli.py validate_model_dir to create parent dirs
• Updated 5 test files to match new defaults
• Fixed README code block formatting (corrupted backspace characters)
• PyPI: ev-qa-framework 2.1.3 available

Test Results

955 tests passing, 0 failures, 93% coverage