📝 Add Comprehensive Code Comments and Documentation

## Description
The codebase needs better inline comments to help new contributors understand the code structure.

## Tasks
- [ ] Add docstrings to all functions
- [ ] Comment complex code sections
- [ ] Create architecture documentation
- [ ] Add code examples in comments

## Expected Outcome
Well-documented codebase that's easy for new contributors to understand.

## Skills Required
- Code reading comprehension
- Technical writing
- Smali/Java knowledge (helpful)

## Difficulty Level
🟢 Beginner Friendly

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*Hacktoberfest 2025 - Great for first-time contributors!*