refactor: Linting fixes

installers/install_lazygit.sh

@@ -34,7 +34,8 @@ install_lazygit() {
 
     local version="${latest_tag#v}"
     
-    local arch=$(detect_arch)
+    local arch
+    arch=$(detect_arch)
     local arch_str="x86_64"
     if [ "$arch" = "arm64" ]; then
         arch_str="arm64"

installers/install_node.sh

@@ -69,6 +69,7 @@ install_node() {
     if [ -s "$BOOTSTRAP_RUNTIMES/nvm/nvm.sh" ]; then
         # Temporarily disable nounset as nvm.sh does not support set -u
         set +u
+        # shellcheck source=/dev/null
         . "$BOOTSTRAP_RUNTIMES/nvm/nvm.sh"
     else
         log_error "Could not load NVM to install Node.js."
@@ -97,7 +98,7 @@ main() {
     if has_command node; then
         log_success "Node.js (via NVM) installation and configuration complete."
         log_info "Installed Node version: $(node --version)"
-        log_info "Installed NVM version: $(nvm --version 2>/dev/null || cat "$BOOTSTRAP_RUNTIMES/nvm/package.json" | grep '"version":' | head -n1 | sed -E 's/.*"version": "([^"]+)".*/\1/' || echo "unknown")"
+        log_info "Installed NVM version: $(nvm --version 2>/dev/null || grep '"version":' "$BOOTSTRAP_RUNTIMES/nvm/package.json" | head -n1 | sed -E 's/.*"version": "([^"]+)".*/\1/' || echo "unknown")"
     else
         log_success "Installation complete."
     fi

installers/install_nvim.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+# shellcheck disable=SC2016
 # Tool: nvim
 # DisplayName: Neovim
 # Description: Install Neovim 0.12.0 and configuration

installers/install_rust.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+# shellcheck disable=SC2016
 # Tool: rust
 # DisplayName: Rust
 # Description: Install Rustup and Rust compiler/toolchain

installers/install_starship.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+# shellcheck disable=SC2016
 # Tool: starship
 # DisplayName: Starship
 # Description: Install Starship shell prompt

installers/install_uv.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+# shellcheck disable=SC2016
 # Tool: uv
 # DisplayName: uv
 # Description: Fast Python package installer and resolver

installers/install_zoxide.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+# shellcheck disable=SC2016
 # Tool: zoxide
 # DisplayName: Zoxide
 # Description: Install Zoxide directory jumper