Initial commit: Orchard content-addressable storage system

- Go server with Gin framework
- PostgreSQL for metadata storage
- MinIO/S3 for artifact storage with SHA256 content addressing
- REST API for grove/tree/fruit operations
- Web UI for managing artifacts
- Docker Compose setup for local development

Dockerfile

@@ -0,0 +1,48 @@
+# Build stage
+FROM golang:1.22-alpine AS builder
+
+RUN apk add --no-cache git ca-certificates
+
+WORKDIR /app
+
+# Copy go mod files
+COPY go.mod go.sum* ./
+RUN go mod download
+
+# Copy source code
+COPY . .
+
+# Build the binary
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \
+    -ldflags="-w -s" \
+    -o /orchard-server \
+    ./cmd/orchard-server
+
+# Runtime stage
+FROM alpine:3.19
+
+RUN apk add --no-cache ca-certificates tzdata
+
+# Create non-root user
+RUN addgroup -g 1000 orchard && \
+    adduser -u 1000 -G orchard -s /bin/sh -D orchard
+
+WORKDIR /app
+
+# Copy binary from builder
+COPY --from=builder /orchard-server /app/orchard-server
+
+# Copy migrations
+COPY --from=builder /app/migrations /app/migrations
+
+# Set ownership
+RUN chown -R orchard:orchard /app
+
+USER orchard
+
+EXPOSE 8080
+
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+    CMD wget --no-verbose --tries=1 --spider http://localhost:8080/health || exit 1
+
+ENTRYPOINT ["/app/orchard-server"]