Comprehensive Documentation and Repository Structure Update

[ppant]

This PR updates the repository's documentation and structure for better consistency and technical clarity. Key changes include:

• Renamed directories 'deque' to 'Deque' and 'Error-debug' to 'ErrorHandling' to match the TitleCase convention.
• Renamed snake_case files in 'Arrays/' and 'Trees/' to PascalCase (e.g., 'AnagramCheckSortedSol.py', 'BuildTreeTest.py').
• Updated the root 'README.md' with correct TitleCase links, GitHub-compatible Table of Contents slugs (handling emojis), and LaTeX complexity notation ($O(n)$, $O(n \log n)$, etc.) for all 50 scripts.
• Standardized all 10 subdirectory 'README.md' files with a '## Contents' section and detailed complexity analysis for every algorithm implementation.
• Verified functional integrity by executing all 50 Python scripts using the environment's Python 3 interpreter.

---

PR created automatically by Jules for task 6816713421016904725 started by @ppant

[google-labs-jules]

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.

---

For security, I will only act on instructions from the user who triggered this task.