ReconTool v1.0.4 - Production Self Update System

ReconTool v1.0.4 - Production Self Update System

• Production-Ready Self-Update System: Complete rewrite of the self-update logic using only standard library Go.
• Binary Replacement: Safely downloads the matching precompiled binary asset from GitHub releases for the user's OS and architecture, verified, and overwrites the running executable.
• Windows Support: Uses the .old renaming trick to replacement-update the locked running executable on Windows safely.
• Permission Check: Gracefully handles insufficient write permissions (e.g., in /usr/bin or standard system path directories), checks for errors, and logs administrative/sudo remediation guidelines.
• Semver Parsing: Robust semantic version checking.