Final installation and debugging report for Ubuntu 25.04 and 24.04

[Priyanshi2409]

Purpose:
This PR presents a detailed installation and debugging report for eSim 2.5 on Ubuntu 25.04 and Ubuntu 24.04.

Approach:

• Attempted installation on Ubuntu 25.04 and observed multiple compatibility issues
• Analyzed installation scripts and terminal errors step-by-step
• Used commands like grep to locate problematic lines in scripts
• Fixed a critical apt-get command error in the installer
• Verified installation behavior on Ubuntu 24.04 for comparison

Key Findings:

• Installer fails on Ubuntu 25 due to strict version checks
• Dependency and repository issues occur due to lack of support for newer Ubuntu versions
• A syntax error in apt-get command caused installation failure

Fix Implemented:

• Corrected incorrect command:
  sudo apt-get xz-utils
  → sudo apt-get install -y xz-utils

Suggestions:

• Replace strict version checks with feature-based detection
• Allow partial compatibility with warnings for newer versions
• Add fallback mechanisms for repository failures

This report reflects a structured debugging approach and highlights practical improvements for better maintainability.

[Priyanshi2409]

Reviewed the report. Ready for evaluation.