Add initial project structure with backend and frontend setup

- Created backend structure with Go, including main application logic and API endpoints.
- Added Docker support for both development and production environments.
- Introduced frontend using Nuxt 3 with Tailwind CSS for styling.
- Included configuration files for Docker and environment variables.
- Established basic documentation for contributing, development, and deployment processes.
- Set up .gitignore and .dockerignore files to manage ignored files in the repository.

Dockerfile

@@ -0,0 +1,31 @@
+FROM golang:1.21-alpine AS gobuilder
+
+RUN mkdir /hnh-map
+WORKDIR /hnh-map
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+RUN go build -o hnh-map ./cmd/hnh-map
+
+FROM node:20-alpine AS frontendbuilder
+
+WORKDIR /app
+
+COPY frontend-nuxt/package.json frontend-nuxt/package-lock.json ./
+RUN npm ci
+
+COPY frontend-nuxt/ ./
+RUN npm run generate
+
+FROM alpine
+
+RUN mkdir /hnh-map
+WORKDIR /hnh-map
+
+COPY --from=gobuilder /hnh-map/hnh-map ./
+COPY --from=frontendbuilder /app/.output/public ./frontend
+
+EXPOSE 8080
+CMD ["/hnh-map/hnh-map", "-grids=/map"]