feat: Implement ticket commenting functionality

Adds the ability for users to comment on tickets, view comments, and distinguish between user and admin responses. Also introduces a new 'SUSPENDED' status for tickets and refactors database schema and API endpoints to support comments.

Dockerfile

@@ -1,15 +0,0 @@
-# Stage 1: Build Frontend
-FROM node:18-alpine as build
-WORKDIR /app
-COPY package*.json ./
-RUN npm install
-COPY . .
-RUN npm run build
-
-# Stage 2: Serve with Nginx
-FROM nginx:alpine
-COPY --from=build /app/dist /usr/share/nginx/html
-# Copy the nginx configuration file (using the .txt extension as provided in source)
-COPY nginx.txt /etc/nginx/nginx.conf
-EXPOSE 80
-CMD ["nginx", "-g", "daemon off;"]