feat: Enhance provider components with detailed documentation and comments

- Added comprehensive comments and JSDoc-style documentation to NotificationProvider, ThemeProvider, UserProvider, and WebsiteThemeProvider for better clarity and maintainability.
- Improved type definitions in index.ts for better code understanding and usage.
- Introduced Docker support with Dockerfiles for various services including AI server, signaling server, and browser-use service.
- Created a docker-compose.yml file to orchestrate multiple services including PostgreSQL, AI, scraper, and frontend.
- Added a startup guide (startup.txt) for setting up the CRM environment on Ubuntu with Docker.
- Included a .dockerignore file to exclude unnecessary files from Docker builds.

Dockerfile

@@ -0,0 +1,23 @@
+FROM node:20-slim AS deps
+WORKDIR /app
+COPY package.json package-lock.json* ./
+RUN npm ci
+
+FROM node:20-slim AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+ARG NEXT_PUBLIC_SCRAPER_URL=http://localhost:3008
+ENV NEXT_PUBLIC_SCRAPER_URL=$NEXT_PUBLIC_SCRAPER_URL
+RUN npm run build
+
+FROM node:20-slim AS runner
+WORKDIR /app
+ENV NODE_ENV=production
+COPY --from=builder /app/.next ./.next
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/next.config.ts ./next.config.ts
+COPY --from=builder /app/package.json ./package.json
+COPY --from=builder /app/node_modules ./node_modules
+EXPOSE 3006
+CMD ["./node_modules/.bin/next", "start", "-p", "3006"]