fix: do not fail if only removing lines from file

[gowoons]

There is a bug where if a file only has had lines removed, the review will not work
This should solve it

[github-actions]

Risk Level 2 - /home/runner/work/code-review-gpt/code-review-gpt/src/review/prompt/constructPrompt/batchFiles/utils/createPromptFiles.ts

The code changes seem to be well written and follow good practices. However, there are a few areas that could be improved for better readability and maintainability:

1. Use of shift() method: In the getChangedIndicesAndLength function, you are using shift() method on the indices array. This operation can be costly as it re-indexes the array after removing the first element. If the array is large, this could impact performance. Consider using a different approach if the order of elements in the array is not important.

2. Use of == operator: In the createPromptFiles function, you are using == operator for comparison. It's generally recommended to use === operator in JavaScript/TypeScript to avoid unexpected type coercion.

3. Use of Infinity and -Infinity: In the getChangedIndicesAndLength function, you are initializing minIndex and maxIndex with Infinity and -Infinity respectively. While this is not wrong, it might be confusing for some developers. Consider adding a comment explaining why you are doing this.

Here are the suggested changes:

// In getChangedIndicesAndLength function
// Instead of shift, consider using a counter to track the index
let counter = 0;
// ...
const index = indices[counter++];

// In createPromptFiles function
// Use === instead of ==
if (totalChangedLinesLength === 0) {
  return result;
}

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[github-actions]

Test results summary:

✅ [PASS] - Test case: Bad variable name
✅ [PASS] - Test case: Exposed secret
✅ [PASS] - Test case: Too many nested loops
✅ [PASS] - Test case: Unawaited Promise

SUMMARY: ✅ PASS: 4 - ⚠️ WARN: 0 - ❌ FAIL: 0

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