feat(benchmarking): added bugs to QA benchmarking [FOU-81]

[mrchocha]

📋 Summary

This PR introduces a QA Benchmark Seed containing a set of intentional, toggleable bugs for use in QA benchmarking and performance evaluation. These bugs are safe, isolated, and can be enabled/disabled locally via localStorage without impacting production.

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�� Included Demo Bugs

Bug Name	Trigger Flag	Scope	Description
File Names with Special Characters Display Incorrectly	localStorage.QA_BENCHMARK_ENABLE_SPECIAL_CHARACTERS_BUG = '1'	Client	File names containing emojis or special characters are corrupted in the UI
Upload Progress Bar Shows Incorrect Percentage	localStorage.QA_BENCHMARK_ENABLE_PROGRESS_BUG = '1'	Client	Upload progress bar displays wrong percentage values and jumps between values
Files Uploaded Successfully but Still Show Error Messages	localStorage.QA_BENCHMARK_ENABLE_SUCCESS_ERROR_BUG = '1'	Client	Files are successfully uploaded but still display error messages in the UI
File Preview Crashes if File Name Has Special Characters	localStorage.QA_BENCHMARK_ENABLE_PREVIEW_CRASH_BUG = '1'	Client	File preview shows error popup when trying to preview files with special characters
Shared with Others Tab Doesn't Show Shared Files	localStorage.QA_BENCHMARK_ENABLE_SHARED_WITH_OTHERS_BUG = '1'	Client	Files are shared with others but don't appear in the "shared with others" tab

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🔧 Usage

Each bug is documented with:

• Enable/Disable instructions
• Reproduction steps
• Modified files and line numbers
• Expected incorrect behavior

These can be found in qa-benchmarks/README.MD along with tickets.csv, which lists the bugs as realistic QA tickets.

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��️ Safety

• Bugs are opt-in only (disabled by default)
• No side effects without explicitly enabling the respective localStorage flags
• No changes to production behavior unless deliberately toggled
• All bugs are client-side localStorage flags; no server restart required

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