Add loc metric to file complexity results

[lolgab]

Summary

• Adds loc field (nloc from lizard) to FileComplexity results, alongside existing complexity field.

Test plan

• Run lizard engine against sample repo, verify loc present in output JSON

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

View in Codacy

🟢 Metrics 0 complexity · 0 duplication

Metric	Results
Complexity	0
Duplication	0

View in Codacy

AI Reviewer: first review requested successfully. AI can make mistakes. Always validate suggestions.

_{TIP This summary will be updated as you push new changes.}