Standardize Repository Structure and Enhance Documentation with Complexity Analysis

[ppant]

Standardized the repository structure by renaming 'Error-debug' to 'ErrorHandling' and 'deque' to 'Deque'. Conducted a comprehensive audit of all 50 Python scripts to provide accurate time complexity analysis ($O(n)$, $O(n \log n)$, etc.) using LaTeX notation in both the root and subdirectory README files. Fixed the root Table of Contents by applying GitHub-style slug rules to headings containing emojis, ensuring functional navigation. Verified the functional integrity of all 49 non-interactive scripts after structural changes.

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PR created automatically by Jules for task 11477040464068319691 started by @ppant

[google-labs-jules]

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