fix: update Dockerfile for development environment setup

Dockerfile

@@ -9,6 +9,7 @@ WORKDIR /app
 
 # Copy Yarn configuration and package files
 COPY .yarnrc.yml package.json yarn.lock ./
+COPY .yarn ./.yarn
 
 # Install dependencies (uses PnP by default from .yarnrc.yml)
 RUN yarn install --immutable

Dockerfile.dev

@@ -0,0 +1,21 @@
+# Development Dockerfile for frontend
+FROM node:iron-alpine3.22
+
+# Enable Corepack for Yarn 4.x
+RUN corepack enable
+
+# Set working directory
+WORKDIR /app
+
+# Copy all source code first
+COPY . .
+
+# Remove any host PnP artifacts and install fresh in container
+RUN rm -rf .pnp.* .yarn/cache .yarn/unplugged .yarn/install-state.gz node_modules && \
+    yarn install --immutable
+
+# Expose the application port
+EXPOSE 3000
+
+# Command to run the development server
+CMD ["yarn", "dev"]