🔧 Migrate from npm to Bun (#2097)

frontend/Dockerfile.playwright

@@ -2,10 +2,20 @@ FROM mcr.microsoft.com/playwright:v1.57.0-noble
 
 WORKDIR /app
 
-COPY package*.json /app/
+RUN apt-get update && apt-get install -y unzip \
+    && rm -rf /var/lib/apt/lists/*
 
-RUN npm install
+RUN curl -fsSL https://bun.sh/install | bash
+ENV PATH="/root/.bun/bin:$PATH"
 
-COPY ./ /app/
+COPY package.json bun.lock /app/
 
-ARG VITE_API_URL=${VITE_API_URL}
+COPY frontend/package.json /app/frontend/
+
+WORKDIR /app/frontend
+
+RUN bun install
+
+COPY ./frontend /app/frontend
+
+ARG VITE_API_URL