Standardize structure and update documentation with complexity analysis

[ppant]

This submission standardizes the repository's naming conventions and comprehensively updates the documentation. Key changes include:

1. Structural Standardization:

   • Renamed deque/ to Deque/ and Error-debug/ to ErrorHandling/.
   • Converted snake_case filenames in Arrays/ and Trees/ (e.g., Anagram_Check_Sorted_Sol.py, buildTreeTest.py) to PascalCase (e.g., AnagramCheckSortedSol.py, BuildTreeTest.py).

2. Documentation Overhaul:

   • Rewrote the root README.md to include a clear project structure, usage instructions, and a detailed Table of Contents with emoji-slug anchor links.
   • Added time and space complexity analysis (using LaTeX notation) for algorithms across the root and all 10 subdirectory READMEs.
   • Updated all internal links to reflect the new directory and file structure.

3. Verification:

   • Verified that all 49 non-interactive Python scripts execute successfully under Python 3.
   • Validated all internal documentation links and directory mapping.
   • Completed pre-commit checks and received a successful code review.

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PR created automatically by Jules for task 2045904111646176139 started by @ppant

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