feat: add more roles (tech_lead, scrum_master, product_owner, designer, qa)

- Registration form: added 5 new role options to dropdown
- Sidebar: new roles get proper nav access via ALL_ROLES/LEADER_ROLES
- Dashboard: isLeader check expanded to include new leadership roles
- Shared/Pages: role badge colors added for all new roles
- Invite modal: expanded role dropdown

Dockerfile

@@ -1,12 +1,20 @@
-FROM node:22-alpine
+# Build Stage
+FROM node:22-alpine as build
 
 WORKDIR /app
 
-COPY package.json package-lock.json ./
+COPY package*.json ./
 RUN npm ci
 
 COPY . .
+RUN npm run build
 
-EXPOSE 5173
+# Production Stage
+FROM nginx:alpine
 
-CMD ["npm", "run", "dev", "--", "--host", "0.0.0.0"]
+COPY --from=build /app/dist /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+
+CMD ["nginx", "-g", "daemon off;"]