feat: 完成模拟交易闭环、App 与 A 股行情接入

统一单入口 Go 工程与前端依赖目录，增加后台供应商配置、候选审核、计划预算、成交冲正、持仓复盘和站内通知。接入策略版本、Python 回测、可配置 A 股公开行情及 zap 文件轮转日志，补充迁移、契约与验证。

internal/handler/strategy.go

@@ -0,0 +1,73 @@
+package handler
+
+import (
+	"git.sundynix.cn/Blizzard/Veyra/internal/apperror"
+	"git.sundynix.cn/Blizzard/Veyra/internal/service"
+	"github.com/gin-gonic/gin"
+	"net/http"
+)
+
+func bindStrategies(r *gin.Engine, options IdentityOptions) {
+	group := r.Group("/api/admin/v1", func(c *gin.Context) { authenticate(c, options, "admin") })
+	group.Use(func(c *gin.Context) {
+		if options.Strategies == nil {
+			fail(c, apperror.ErrUnavailable)
+			return
+		}
+		c.Next()
+	})
+	group.GET("/strategies", func(c *gin.Context) {
+		result, err := options.Strategies.List(c.Request.Context(), currentUser(c))
+		if err != nil {
+			fail(c, err)
+			return
+		}
+		success(c, http.StatusOK, result)
+	})
+	group.GET("/strategies/:id", func(c *gin.Context) {
+		result, err := options.Strategies.Detail(c.Request.Context(), currentUser(c), c.Param("id"))
+		if err != nil {
+			fail(c, err)
+			return
+		}
+		success(c, http.StatusOK, result)
+	})
+	group.Use(func(c *gin.Context) {
+		if !sameOrigin(c.Request) {
+			fail(c, apperror.ErrForbidden)
+			return
+		}
+		c.Next()
+	})
+	for _, path := range []string{"/strategies", "/strategies/:id/versions"} {
+		group.POST(path, func(c *gin.Context) {
+			var input service.StrategyInput
+			if !decode(c, &input) {
+				return
+			}
+			result, err := options.Strategies.Save(c.Request.Context(), currentUser(c), c.Param("id"), input, c.Writer.Header().Get("X-Request-ID"))
+			if err != nil {
+				fail(c, err)
+				return
+			}
+			success(c, http.StatusCreated, result)
+		})
+	}
+	group.POST("/strategies/:id/deploy", func(c *gin.Context) {
+		var input struct {
+			VersionID       string `json:"version_id"`
+			Status          string `json:"status"`
+			ExpectedVersion int64  `json:"expected_version"`
+			Reason          string `json:"reason"`
+		}
+		if !decode(c, &input) {
+			return
+		}
+		result, err := options.Strategies.Deploy(c.Request.Context(), currentUser(c), c.Param("id"), input.VersionID, input.Status, input.ExpectedVersion, input.Reason, c.Writer.Header().Get("X-Request-ID"))
+		if err != nil {
+			fail(c, err)
+			return
+		}
+		success(c, http.StatusOK, result)
+	})
+}