refactor: Update installer scripts to make use of rollback hooks and exec tracking

installers/install_agy.sh

@@ -130,6 +130,8 @@ install_agy() {
     cp "$extracted_binary" "$BINARY_PATH"
     chmod +x "$BINARY_PATH"
     rm -rf "$staging_dir"
+    
+    track_file "$BINARY_PATH"
 
     log_success "Antigravity CLI successfully installed to $BINARY_PATH."
 }

installers/install_asciicinema.sh

@@ -81,10 +81,12 @@ install_asciicinema() {
     log_info "Installing asciinema to /usr/local/bin..."
     sudo cp "$TMP_DIR/asciinema" /usr/local/bin/asciinema
     sudo chmod +x /usr/local/bin/asciinema
+    track_file "/usr/local/bin/asciinema"
 
     # Create compatibility symlink matching the installer name spelling
     log_info "Creating compatibility symlink for asciicinema..."
     sudo ln -sf /usr/local/bin/asciinema /usr/local/bin/asciicinema
+    track_file "/usr/local/bin/asciicinema"
 
     log_success "asciinema ${latest_tag} installed."
 }

installers/install_bat.sh

@@ -67,6 +67,7 @@ install_bat() {
 
         log_info "Installing Bat package..."
         sudo apt install -y "$TMP_DIR/bat.deb"
+        add_rollback_cmd "sudo apt remove -y bat"
 
     else
         log_error "Unsupported distribution."

installers/install_node.sh

@@ -51,6 +51,8 @@ install_nvm() {
     log_info "Extracting NVM archive directly to $HOME/.nvm (stripping versioned subfolder to keep config generic)..."
     mkdir -p "$HOME/.nvm"
     tar -xzf "$TMP_DIR/nvm.tar.gz" -C "$HOME/.nvm" --strip-components=1
+    
+    track_dir "$HOME/.nvm"
 
     log_success "NVM source files successfully extracted to $HOME/.nvm."
 }

installers/install_nvim.sh

@@ -47,6 +47,7 @@ install_packages() {
 
     log_info "Installing tree-sitter-cli globally..."
     sudo npm install -g tree-sitter-cli
+    add_rollback_cmd "sudo npm uninstall -g tree-sitter-cli"
 }
 
 install_nvim() {
@@ -86,6 +87,9 @@ install_nvim() {
     sudo mv "$TMP_DIR/nvim-${nvim_arch}" "$NVIM_INSTALL_DIR"
 
     sudo ln -sf "$NVIM_INSTALL_DIR/bin/nvim" /usr/local/bin/nvim
+    
+    track_dir "$NVIM_INSTALL_DIR"
+    track_file "/usr/local/bin/nvim"
 
     log_success "Installed:"
     nvim --version | head -n1
@@ -102,6 +106,7 @@ install_config() {
 
     log_info "Cloning configuration to $NVIM_CONFIG_DIR..."
     git clone "$NVIM_CONFIG_REPO" "$NVIM_CONFIG_DIR"
+    track_dir "$NVIM_CONFIG_DIR"
     log_success "Configuration installed."
 }
 

installers/install_pnpm.sh

@@ -173,6 +173,7 @@ install_pnpm() {
         }
     fi
 
+    track_dir "$HOME/.local/share/pnpm"
     log_success "pnpm v${version} installed successfully!"
 }
 

installers/install_rust.sh

@@ -85,6 +85,8 @@ install_rust() {
     # -y: skip prompts (we already confirmed)
     # --no-modify-path: let bootstrap manage the shell paths
     "$dest" -y --no-modify-path
+    
+    add_rollback_cmd "rustup self uninstall -y"
 }
 
 configure_shell() {

installers/install_starship.sh

@@ -71,6 +71,7 @@ install_starship() {
     log_info "Installing Starship to $target_dir/starship..."
     cp "$TMP_DIR/starship" "$target_dir/starship"
     chmod +x "$target_dir/starship"
+    track_file "$target_dir/starship"
 }
 
 configure_shell() {

installers/install_uv.sh

@@ -81,6 +81,8 @@ install_uv() {
     cp "$TMP_DIR/uv" "$target_dir/uv"
     cp "$TMP_DIR/uvx" "$target_dir/uvx"
     chmod +x "$target_dir/uv" "$target_dir/uvx"
+    track_file "$target_dir/uv"
+    track_file "$target_dir/uvx"
 }
 
 configure_shell() {

installers/install_yay.sh

@@ -61,6 +61,7 @@ install_yay() {
 
     log_info "Building and installing yay..."
     makepkg -si
+    add_rollback_cmd "sudo pacman -R --noconfirm yay"
 
     cd "$orig_dir"
     log_info "Cleaning up installer directory..."

installers/install_yazi.sh

@@ -80,6 +80,7 @@ install_yazi() {
 
         log_info "Installing Yazi package..."
         sudo apt install -y "$TMP_DIR/yazi.deb"
+        add_rollback_cmd "sudo apt remove -y yazi"
 
         log_info "Installing dependencies subsequently..."
         pkg_install ffmpeg jq poppler-utils fd-find ripgrep fzf zoxide resvg imagemagick 7zip || \
@@ -101,6 +102,7 @@ install_yazi() {
 
         log_info "Installing Yazi (without weak dependencies first)..."
         sudo dnf install -y yazi --setopt=install_weak_deps=False
+        add_rollback_cmd "sudo dnf remove -y yazi"
 
         log_info "Installing weak dependencies subsequently..."
         pkg_install yazi

installers/install_zoxide.sh

@@ -40,6 +40,7 @@ install_zoxide() {
 
     log_info "Downloading and running the official zoxide installer..."
     curl -sSfL https://raw.githubusercontent.com/ajeetdsouza/zoxide/main/install.sh | sh
+    track_file "$HOME/.local/bin/zoxide"
 }
 
 configure_shell() {