Remove install.sh / uninstall.sh and deprecate curl | bash method 🗑️

[HelloPrincePal]

Context 🤔

Our current installation method instructs users to use curl -sL <url> | bash. This is a massive red flag for Reddit auto-moderator bots and enterprise security filters, leading to our repo being flagged as "Malicious / New Script Risk."

Note: This issue depends on the Homebrew Tap being fully functional first!

Requirements / Acceptance Criteria 🎯

• Completely delete install.sh from the repository root.
• Completely delete uninstall.sh from the repository root.
• Update README.md to remove any mention of curl | bash installation flows.
• Replace the README Quick Install instructions to exclusively recommend the new brew install Homebrew Tap command.
• Provide instructions in the README on how to cleanly uninstall via Homebrew (brew uninstall droidtether).