feat: add SproutWorkCollect apps

SproutWorkCollect-Backend-Golang/Dockerfile

@@ -0,0 +1,40 @@
+# ─── Build Stage ──────────────────────────────────────────────────────────────
+FROM golang:1.21-alpine AS builder
+
+WORKDIR /build
+
+# Allow go to fetch modules even without a pre-generated go.sum
+ENV GOFLAGS=-mod=mod
+ENV GONOSUMDB=*
+
+COPY go.mod ./
+RUN go mod download
+
+COPY . .
+
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
+    go build -ldflags="-w -s" -o sproutworkcollect-backend .
+
+# ─── Runtime Stage ────────────────────────────────────────────────────────────
+FROM alpine:3.19
+
+RUN apk add --no-cache ca-certificates tzdata wget && \
+    cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && \
+    echo "Asia/Shanghai" > /etc/timezone
+
+WORKDIR /app
+
+COPY --from=builder /build/sproutworkcollect-backend .
+
+# Default data directories; override by mounting volumes at runtime
+RUN mkdir -p /data/works /data/config
+
+EXPOSE 5000
+
+ENV SPROUTWORKCOLLECT_DATA_DIR=/data
+ENV PORT=5000
+
+HEALTHCHECK --interval=30s --timeout=10s --start-period=15s --retries=3 \
+    CMD wget -qO- http://localhost:5000/api/settings || exit 1
+
+CMD ["./sproutworkcollect-backend"]