Add beautiful bilingual documentation with Railway deploy button and function reference

[Copilot]

This PR transforms the project documentation to make it beautiful, professional, and user-friendly. The changes include a complete overhaul of the README and addition of comprehensive function documentation in both Hebrew and English.

Changes Made

README.md

• Bilingual format: Hebrew section first, followed by English translation
• Railway deployment: Added prominent deploy button with proper template configuration
• Clear ownership: Explicitly states this is Artisa111's personal bot project
• Complete setup guide: Both local installation and Railway deployment instructions
• Professional structure: Clean project overview, security notes, and feature highlights

Function Documentation

• Hebrew reference (docs/functions-he.md): Complete function-by-function documentation in Hebrew
• English reference (docs/functions-en.md): Matching comprehensive English documentation
• Module coverage: All major modules documented including bot.py, app.py, config.py, etc.
• Developer friendly: Clear parameter descriptions and function purposes

Key Features

The new documentation provides:

• One-click Railway deployment with environment variable configuration
• Bilingual support for Hebrew and English speaking users
• Complete function reference for developers
• Clear security guidelines (no hardcoded tokens)
• Professional presentation that reflects the quality of the codebase

The Railway deploy button is configured to automatically prompt for the TELEGRAM_TOKEN environment variable and includes a descriptive name and description for the deployed service.

This documentation establishes the project as a professional, well-maintained bot solution while clearly crediting Artisa111 as the creator and maintainer.

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