feat: remote config

Dockerfile

@@ -23,8 +23,14 @@ RUN --mount=type=cache,target=/root/.cache/go-build \
 
 FROM alpine:latest
 
+RUN apk add --no-cache curl
+
 WORKDIR /app
 
 COPY --from=builder /app/saveany-bot .
+COPY entrypoint.sh .
 
-ENTRYPOINT  ["/app/saveany-bot"]
+RUN chmod +x /app/saveany-bot && \
+    chmod +x /app/entrypoint.sh
+
+ENTRYPOINT ["/app/entrypoint.sh"]

entrypoint.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+if [ -n "$CONFIG_URL" ]; then
+    echo "[INFO] Downloading config from $CONFIG_URL"
+    if curl -sSLo /app/config.toml "$CONFIG_URL"; then
+        echo "[INFO] Configuration downloaded successfully"
+    else
+        echo "[ERROR] Failed to download config from $CONFIG_URL"
+        exit 1
+    fi
+fi
+
+if [ ! -f /app/config.toml ]; then
+    echo "[ERROR] Missing config.toml: 请通过挂载或 CONFIG_URL 提供配置文件"
+    exit 1
+fi
+    
+exec /app/saveany-bot