fix: support schema-valid line ranges in evaluator

[quan020406]

Summary

• Support integer and start-end line values in the evaluator.
• Match findings against normalized closed line intervals.
• Preserve existing integer matching and tolerance behavior.
• Add regression tests for range matching and tolerance boundaries.
• Update English and Chinese evaluation documentation.

Root cause

examples/evaluate.py converted all line values with int(...). Schema-valid values such as "112-119" were therefore treated as unmatched.

Validation

• 6 tests passed.
• Dataset loading: 184 reports / 408 entries.
• Example evaluation: 3/184 advisory recall and 3/408 entry recall.
• git diff --check passed.