⚡ Optimize parseList performance to O(N)

[thib3113]

💡 What: Replaced the spread operator [...prev, curr] with prev.push(curr) inside the reduce loop in src/utils.ts.
🎯 Why: The spread operator creates a shallow copy of the array in each iteration, leading to quadratic time complexity O(N^2). Array.push operates in amortized O(1) time, resulting in linear time complexity O(N) for the entire operation.
📊 Measured Improvement:

• Baseline: ~3050ms for parsing 20,000 items.
• Optimized: ~11ms for parsing 20,000 items.
• Improvement: ~270x speedup.

Verified with a benchmark test and regression tests.

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PR created automatically by Jules for task 2566441461268710797 started by @thib3113

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.64%. Comparing base (546150f) to head (b3dbe96).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #69      +/-   ##
==========================================
+ Coverage   77.60%   77.64%   +0.04%     
==========================================
  Files          33       33              
  Lines         509      510       +1     
  Branches       90       88       -2     
==========================================
+ Hits          395      396       +1     
  Misses        114      114              

Files with missing lines	Coverage Δ
src/utils.ts	100.00% <100.00%> (ø)

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