⚡ Optimize flattenObject to use Object.keys

[rustyy]

💡 What: Replaced the Object.entries(obj) loop with an Object.keys(obj) loop in flattenObject.ts and accessed the value by index internally.

🎯 Why: The previous implementation using Object.entries created a new [key, value] tuple allocation for every property iterated during an object flattening. In intensive applications where large objects are regularly flattened for URL signature building, this quickly created a massive amount of garbage memory and CPU overhead. By switching to Object.keys(obj) and looking up the values directly, we completely avoid those unnecessary tuple allocations.

📊 Measured Improvement: Since Object.keys(obj) operates functionally similarly to Object.entries(obj) but prevents the intermediate array tuple creation at a native engine level, the change will scale directly in memory and compute savings linearly per N size objects flattened. Though we were unable to show a direct benchmark given no existing benchmark framework in this codebase, minimizing the allocation of short-lived tuple references is an established JavaScript engine optimization.

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PR created automatically by Jules for task 6865617793150109230 started by @rustyy

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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