fix: revert to node for container image

Dockerfile

 # syntax=docker/dockerfile:1
 
-FROM oven/bun:latest as build
+FROM node:alpine as build
 
 WORKDIR /app
 
 COPY package.json package-lock.json ./ 
-COPY . .
+RUN npm ci
 
-RUN bun install
-RUN bun run build
+COPY . .
+RUN npm run build
 
 FROM python:3.11-slim-buster as base
 

src/lib/constants.ts

 import { dev } from '$app/environment';
 
-export const WEBUI_BASE_URL = ``;
+export const WEBUI_BASE_URL = dev ? `http://${location.hostname}:8080` : ``;
 
 export const WEBUI_API_BASE_URL = `${WEBUI_BASE_URL}/api/v1`;
 export const OLLAMA_API_BASE_URL = `${WEBUI_BASE_URL}/ollama/api`;