Add full monorepo: virtual-banker, backend, frontend, docs, scripts, deployment

Co-authored-by: Cursor <cursoragent@cursor.com>

deployment/Dockerfile.backend

@@ -0,0 +1,30 @@
+FROM golang:1.21-alpine AS builder
+
+WORKDIR /app
+
+# Copy go mod files
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy source code
+COPY . .
+
+# Build
+RUN CGO_ENABLED=0 GOOS=linux go build -o /app/virtual-banker-api ./main.go
+
+# Final stage
+FROM alpine:latest
+
+RUN apk --no-cache add ca-certificates curl
+
+WORKDIR /root/
+
+COPY --from=builder /app/virtual-banker-api .
+
+EXPOSE 8081
+
+HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
+  CMD curl -f http://localhost:8081/health || exit 1
+
+CMD ["./virtual-banker-api"]
+