init: 初始化 AssetX 项目仓库

包含 webapp（Next.js 用户端）、webapp-back（Go 后端）、
antdesign（管理后台）、landingpage（营销落地页）、
数据库 SQL 和配置文件。

webapp-back/admin/liquidation.go

@@ -0,0 +1,121 @@
+package admin
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/gin-gonic/gin"
+	appcfg "github.com/gothinkster/golang-gin-realworld-example-app/config"
+	"github.com/gothinkster/golang-gin-realworld-example-app/common"
+	"github.com/gothinkster/golang-gin-realworld-example-app/lending"
+	"github.com/gothinkster/golang-gin-realworld-example-app/models"
+)
+
+// ── Collateral Buyer Bot ───────────────────────────────────────────────────
+
+func GetBuyerBotStatus(c *gin.Context) {
+	OK(c, lending.GetBuyerBotStatus())
+}
+
+func StartBuyerBot(c *gin.Context) {
+	cfg := appcfg.AppConfig
+	if cfg == nil {
+		Fail(c, http.StatusInternalServerError, "Configuration not loaded")
+		return
+	}
+	if cfg.CollateralBuyerPrivateKey == "" {
+		Fail(c, http.StatusBadRequest, "COLLATERAL_BUYER_PRIVATE_KEY not configured on server")
+		return
+	}
+	lending.StartCollateralBuyerBot(cfg)
+	OK(c, gin.H{"message": "Collateral buyer bot start signal sent"})
+}
+
+func StopBuyerBot(c *gin.Context) {
+	lending.StopCollateralBuyerBot()
+	OK(c, gin.H{"message": "Collateral buyer bot stop signal sent"})
+}
+
+func ListBuyRecords(c *gin.Context) {
+	db := common.GetDB()
+	p := ParsePagination(c)
+
+	query := db.Model(&models.CollateralBuyRecord{})
+	if v := c.Query("chain_id"); v != "" {
+		if id, err := strconv.Atoi(v); err == nil {
+			query = query.Where("chain_id = ?", id)
+		}
+	}
+	if v := c.Query("status"); v != "" {
+		query = query.Where("status = ?", v)
+	}
+	if v := c.Query("asset_addr"); v != "" {
+		query = query.Where("asset_addr = ?", v)
+	}
+
+	var total int64
+	query.Count(&total)
+
+	var records []models.CollateralBuyRecord
+	if err := query.Order("created_at DESC").Offset(p.Offset()).Limit(p.PageSize).Find(&records).Error; err != nil {
+		Fail(c, http.StatusInternalServerError, "Failed to fetch buy records")
+		return
+	}
+	OKList(c, records, total)
+}
+
+// GetLiquidationStatus returns the current liquidation bot status
+func GetLiquidationStatus(c *gin.Context) {
+	status := lending.GetBotStatus()
+	OK(c, status)
+}
+
+// StartLiquidationBot starts the liquidation bot
+func StartLiquidationBot(c *gin.Context) {
+	cfg := appcfg.AppConfig
+	if cfg == nil {
+		Fail(c, http.StatusInternalServerError, "Configuration not loaded")
+		return
+	}
+	if cfg.LiquidatorPrivateKey == "" {
+		Fail(c, http.StatusBadRequest, "LIQUIDATOR_PRIVATE_KEY not configured on server")
+		return
+	}
+	lending.StartLiquidationBot(cfg)
+	OK(c, gin.H{"message": "Liquidation bot start signal sent"})
+}
+
+// StopLiquidationBot stops the liquidation bot
+func StopLiquidationBot(c *gin.Context) {
+	lending.StopLiquidationBot()
+	OK(c, gin.H{"message": "Liquidation bot stop signal sent"})
+}
+
+// ListLiquidationRecords returns paginated liquidation history
+func ListLiquidationRecords(c *gin.Context) {
+	db := common.GetDB()
+	p := ParsePagination(c)
+
+	query := db.Model(&models.LiquidationRecord{})
+	if v := c.Query("chain_id"); v != "" {
+		if id, err := strconv.Atoi(v); err == nil {
+			query = query.Where("chain_id = ?", id)
+		}
+	}
+	if v := c.Query("status"); v != "" {
+		query = query.Where("status = ?", v)
+	}
+	if v := c.Query("liquidator_addr"); v != "" {
+		query = query.Where("liquidator_addr = ?", v)
+	}
+
+	var total int64
+	query.Count(&total)
+
+	var records []models.LiquidationRecord
+	if err := query.Order("created_at DESC").Offset(p.Offset()).Limit(p.PageSize).Find(&records).Error; err != nil {
+		Fail(c, http.StatusInternalServerError, "Failed to fetch liquidation records")
+		return
+	}
+	OKList(c, records, total)
+}