fix(mining): 修复 DailySnapshot API 路径 v1→v2 + deploy-mining.sh 默认 standalone

- fetchContributionRatios URL 从 /api/v1/ 改为 /api/v2/ 与 contribution-service 的 globalPrefix 匹配
- deploy-mining.sh 默认部署模式从 shared 改为 standalone

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/services/deploy-mining.sh

@@ -8,8 +8,8 @@
 # affecting the 1.0 system.
 #
 # Deploy Modes (set via DEPLOY_MODE env var):
-#   shared     (default) Co-located with 1.0, shares PostgreSQL/Redis/Kafka
-#   standalone Separate server with local PostgreSQL/Redis, remote Kafka (192.168.1.111:9093)
+#   standalone (default) Separate server with local PostgreSQL/Redis, remote Kafka (192.168.1.111:9093)
+#   shared     Co-located with 1.0, shares PostgreSQL/Redis/Kafka (use: DEPLOY_MODE=shared)
 #
 # Usage:
 #   ./deploy-mining.sh up [service]              # Start all or specific service
@@ -60,8 +60,8 @@ SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 ENV_FILE="$SCRIPT_DIR/.env"
 COMPOSE_FILE="$SCRIPT_DIR/docker-compose.2.0.yml"
 
-# Deployment mode: "shared" (default, same server as 1.0) or "standalone" (separate server)
-DEPLOY_MODE="${DEPLOY_MODE:-shared}"
+# Deployment mode: "standalone" (default, separate server) or "shared" (same server as 1.0)
+DEPLOY_MODE="${DEPLOY_MODE:-standalone}"
 
 # 2.0 Services
 MINING_SERVICES=(

backend/services/mining-service/src/application/services/contribution-sync.service.ts

@@ -124,7 +124,7 @@ export class ContributionSyncService {
     pageSize: number,
   ): Promise<{ data: ContributionData[]; total: number } | null> {
     try {
-      const url = `${baseUrl}/api/v1/snapshots/${snapshotDate}/ratios?page=${page}&pageSize=${pageSize}`;
+      const url = `${baseUrl}/api/v2/snapshots/${snapshotDate}/ratios?page=${page}&pageSize=${pageSize}`;
       const response = await fetch(url);
 
       if (!response.ok) {