Make setup ISO-only

Remove legacy online installer entrypoints, collapse migrations for 4.0, and move setup responsibilities into target-side system, hardware, and user commands.

bin/omarchy-tui-install

@@ -1,40 +1,76 @@
 #!/bin/bash
 
 # omarchy:summary=Create a desktop launcher for a terminal UI app
-# omarchy:args=[name command window-style icon-url]
+# omarchy:args=[name command window-style icon-url-or-name]
 
 set -e
 
+ICON_DIR="$HOME/.local/share/icons/hicolor/256x256/apps"
+
+safe_icon_name() {
+  printf '%s\n' "$1" \
+    | tr '[:upper:]' '[:lower:]' \
+    | sed 's/[^[:alnum:]]\+/-/g; s/^-//; s/-$//'
+}
+
+icon_name_from_ref() {
+  local ref="$1"
+  local name
+  name=$(basename "$ref")
+
+  if [[ $name == *.* ]]; then
+    safe_icon_name "${name%.*}"
+  else
+    printf '%s\n' "$name"
+  fi
+}
+
+install_user_icon() {
+  local source="$1"
+  local name="$2"
+  local ext="${source##*.}"
+
+  [[ $ext == "$source" ]] && ext="png"
+  mkdir -p "$ICON_DIR"
+  cp "$source" "$ICON_DIR/$name.$ext"
+  gtk-update-icon-cache "$HOME/.local/share/icons/hicolor" &>/dev/null || true
+  printf '%s\n' "$name"
+}
+
 if (( $# != 4 )); then
   echo -e "\e[32mLet's create a TUI shortcut you can start with the app launcher.\n\e[0m"
   APP_NAME=$(gum input --prompt "Name> " --placeholder "My TUI")
   APP_EXEC=$(gum input --prompt "Launch Command> " --placeholder "lazydocker or bash -c 'dust; read -n 1 -s'")
   WINDOW_STYLE=$(gum choose --header "Window style" float tile)
-  ICON_URL=$(gum input --prompt "Icon URL> " --placeholder "See https://dashboardicons.com (must use PNG or SVG!)")
+  ICON_REF=$(gum input --prompt "Icon URL/name> " --placeholder "See https://dashboardicons.com or enter an installed icon name")
 else
   APP_NAME="$1"
   APP_EXEC="$2"
   WINDOW_STYLE="$3"
-  ICON_URL="$4"
+  ICON_REF="$4"
 fi
 
-if [[ -z $APP_NAME || -z $APP_EXEC || -z $ICON_URL ]]; then
-  echo "You must set app name, app command, and icon URL!"
+if [[ -z $APP_NAME || -z $APP_EXEC || -z $ICON_REF ]]; then
+  echo "You must set app name, app command, and icon URL/name!"
   exit 1
 fi
 
-ICON_DIR="$HOME/.local/share/applications/icons"
 DESKTOP_FILE="$HOME/.local/share/applications/$APP_NAME.desktop"
+mkdir -p "$(dirname "$DESKTOP_FILE")"
 
-if [[ ! $ICON_URL =~ ^https?:// ]] && [[ -f $ICON_URL ]]; then
-  ICON_PATH="$ICON_URL"
-else
-  ICON_PATH="$ICON_DIR/$APP_NAME.png"
+if [[ $ICON_REF =~ ^https?:// ]]; then
+  ICON_VALUE=$(safe_icon_name "$APP_NAME")
   mkdir -p "$ICON_DIR"
-  if ! curl -sL -o "$ICON_PATH" "$ICON_URL"; then
+  if ! curl -sL -o "$ICON_DIR/$ICON_VALUE.png" "$ICON_REF"; then
     echo "Error: Failed to download icon."
     exit 1
   fi
+  gtk-update-icon-cache "$HOME/.local/share/icons/hicolor" &>/dev/null || true
+elif [[ -f $ICON_REF ]]; then
+  ICON_VALUE=$(install_user_icon "$ICON_REF" "$(safe_icon_name "$APP_NAME")")
+else
+  # Bundled Omarchy icons are package-owned under /usr/share/icons/hicolor.
+  ICON_VALUE=$(icon_name_from_ref "$ICON_REF")
 fi
 
 if [[ $WINDOW_STYLE == "float" ]]; then
@@ -51,7 +87,7 @@ Comment=$APP_NAME
 Exec=xdg-terminal-exec --app-id=$APP_CLASS -e $APP_EXEC
 Terminal=false
 Type=Application
-Icon=$ICON_PATH
+Icon=$ICON_VALUE
 StartupNotify=true
 EOF