Add mc config, lazygit/nerd-font installers, fzf/zoxide bash integration

- New mc package: seasons-winter16M skin (fixes washed-out file colors
  under the old default skin), arrow-key panel navigation, and
  Backspace bound as an alt key for CdParent (Double Commander-style
  parent-dir navigation).
- setup.sh: install_lazygit and install_nerd_font helpers, since
  neither ships as an apt/PPA package on this distro anymore.
- bash/.bashrc.omb: wire up fzf key-bindings and zoxide, drop the now-
  redundant bashmarks plugin, enable globstar, and widen history.

setup.sh

@@ -11,6 +11,72 @@ stow_pkg() {
     stow -v -d "$DOTFILES_DIR" -t "$HOME" "$pkg"
 }
 
+install_nerd_font() {
+    local font_dir="$HOME/.local/share/fonts"
+
+    if fc-list 2>/dev/null | grep -qi "MesloLGS Nerd Font"; then
+        echo "OK: MesloLGS Nerd Font already installed"
+        return
+    fi
+
+    if ! command -v curl &>/dev/null || ! command -v unzip &>/dev/null; then
+        echo "SKIP: MesloLGS Nerd Font (curl and/or unzip not available)"
+        return
+    fi
+
+    echo "Installing MesloLGS Nerd Font..."
+    local tmp_zip
+    tmp_zip="$(mktemp --suffix=.zip)"
+    if curl -fsSL -o "$tmp_zip" \
+        "https://github.com/ryanoasis/nerd-fonts/releases/latest/download/Meslo.zip"; then
+        mkdir -p "$font_dir"
+        unzip -oq "$tmp_zip" -d "$font_dir" "*.ttf"
+        fc-cache -f "$font_dir" >/dev/null
+        echo "ADDED: MesloLGS Nerd Font to $font_dir"
+    else
+        echo "WARNING: failed to download Nerd Font, skipping"
+    fi
+    rm -f "$tmp_zip"
+}
+
+install_lazygit() {
+    local bin_dir="$HOME/.local/bin"
+
+    if command -v lazygit &>/dev/null; then
+        echo "OK: lazygit already installed"
+        return
+    fi
+
+    if ! command -v curl &>/dev/null || ! command -v tar &>/dev/null; then
+        echo "SKIP: lazygit (curl and/or tar not available)"
+        return
+    fi
+
+    echo "Installing lazygit..."
+    local version
+    version="$(curl -fsSL https://api.github.com/repos/jesseduffield/lazygit/releases/latest \
+        | grep -Po '"tag_name": "v\K[^"]*')"
+
+    if [ -z "$version" ]; then
+        echo "WARNING: could not determine latest lazygit version, skipping"
+        return
+    fi
+
+    local tmp_tar
+    tmp_tar="$(mktemp --suffix=.tar.gz)"
+    if curl -fsSL -o "$tmp_tar" \
+        "https://github.com/jesseduffield/lazygit/releases/latest/download/lazygit_${version}_Linux_x86_64.tar.gz"; then
+        mkdir -p "$bin_dir"
+        tar -xzf "$tmp_tar" -C "$(dirname "$tmp_tar")" lazygit
+        install -m 755 "$(dirname "$tmp_tar")/lazygit" "$bin_dir/lazygit"
+        rm -f "$(dirname "$tmp_tar")/lazygit"
+        echo "ADDED: lazygit $version to $bin_dir"
+    else
+        echo "WARNING: failed to download lazygit, skipping"
+    fi
+    rm -f "$tmp_tar"
+}
+
 ensure_sourced() {
     local file="$1"
     local bashrc="$HOME/.bashrc"
@@ -44,10 +110,12 @@ fi
 # bash — stow dotfiles, then ensure ~/.bashrc sources them
 stow_pkg bash
 ensure_sourced "$HOME/.bashrc.omb"
+install_lazygit
 
 # kitty
 if command -v kitty &>/dev/null; then
     stow_pkg kitty
+    install_nerd_font
 else
     echo "SKIP: kitty (not installed)"
 fi
@@ -59,4 +127,11 @@ else
     echo "SKIP: fastfetch (not installed)"
 fi
 
+# mc
+if command -v mc &>/dev/null; then
+    stow_pkg mc
+else
+    echo "SKIP: mc (not installed)"
+fi
+
 echo "Done!"