[FEAT] Docker compose

Dockerfile

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+# Build stage
+FROM golang:1.24-alpine AS builder
+
+WORKDIR /app
+
+# Install git for fetching dependencies
+RUN apk add --no-cache git
+
+# Copy go mod files first for better caching
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy source code
+COPY . .
+
+# Build the binary
+RUN CGO_ENABLED=0 GOOS=linux go build -o fitra-backend .
+
+# Runtime stage
+FROM alpine:latest
+
+WORKDIR /app
+
+# Copy the binary from builder
+COPY --from=builder /app/fitra-backend .
+
+# Create uploads directory
+RUN mkdir -p /app/uploads
+
+# Expose port
+EXPOSE 8080
+
+# Set environment variables
+ENV GIN_MODE=release
+ENV PORT=8080
+
+# Run the binary
+CMD ["./fitra-backend"]