openwebui: Python version usage | core: zsh completion install (#9079)

Author: MickLesk

ct/openwebui.sh

@@ -42,7 +42,7 @@ function update_script() {
 
     msg_info "Installing uv-based Open-WebUI"
     PYTHON_VERSION="3.12" setup_uv
-    $STD uv tool install --python $PYTHON_VERSION open-webui[all]
+    $STD uv tool install --python 3.12 open-webui[all]
     msg_ok "Installed uv-based Open-WebUI"
 
     msg_info "Restoring data"

misc/tools.func

@@ -4522,7 +4522,9 @@ function setup_uv() {
 
   # Optional: Generate shell completions
   $STD uv generate-shell-completion bash >/etc/bash_completion.d/uv 2>/dev/null || true
-  $STD uv generate-shell-completion zsh >/usr/share/zsh/site-functions/_uv 2>/dev/null || true
+  if [[ -d /usr/share/zsh/site-functions ]]; then
+    $STD uv generate-shell-completion zsh >/usr/share/zsh/site-functions/_uv 2>/dev/null || true
+  fi
 
   # Optional: Install specific Python version if requested
   if [[ -n "${PYTHON_VERSION:-}" ]]; then