fix: add go.sum and fixes

deploy/docker/Dockerfile.server

@@ -1,13 +1,59 @@
+# ═══════════════════════════════════════════════════════════
+# 🐍 OPHION Server - Dockerfile
+# ═══════════════════════════════════════════════════════════
+
+# Build stage
 FROM golang:1.22-alpine AS builder
-WORKDIR /app
+
+WORKDIR /build
+
+# Install dependencies
+RUN apk add --no-cache git ca-certificates
+
+# Copy go modules first (cache layer)
 COPY go.mod go.sum ./
 RUN go mod download
-COPY . .
-RUN CGO_ENABLED=0 GOOS=linux go build -o ophion-server ./cmd/server
 
+# Copy source code
+COPY cmd/ ./cmd/
+COPY internal/ ./internal/
+
+# Build the server binary
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
+    go build -ldflags="-s -w" -o ophion-server ./cmd/server
+
+# Runtime stage
 FROM alpine:3.19
-RUN apk --no-cache add ca-certificates
+
+LABEL org.opencontainers.image.title="OPHION Server"
+LABEL org.opencontainers.image.description="Observability Platform API Server"
+
+# Install runtime dependencies
+RUN apk add --no-cache ca-certificates tzdata wget
+
+# Create non-root user
+RUN addgroup -g 1000 ophion && \
+    adduser -u 1000 -G ophion -s /bin/sh -D ophion
+
 WORKDIR /app
-COPY --from=builder /app/ophion-server .
+
+# Copy binary from builder
+COPY --from=builder /build/ophion-server /app/
+
+# Create data directories
+RUN mkdir -p /app/data /app/logs && \
+    chown -R ophion:ophion /app
+
+USER ophion
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD wget -q --spider http://localhost:8080/health || exit 1
+
+# Environment defaults
+ENV TZ=America/Sao_Paulo \
+    PORT=8080
+
 EXPOSE 8080
-CMD ["./ophion-server"]
+
+ENTRYPOINT ["/app/ophion-server"]