feat: Implement Steam login initialization logic

- Added SteamLoginInitLogic to handle the initiation of Steam login.
- Created service context for managing configuration and Redis connection.
- Defined types for Steam login requests and callbacks.
- Implemented utility functions for building OpenID query strings and validating responses from Steam.
- Updated go.mod and go.sum to include necessary dependencies.
- Modified GenApi.ps1 script to generate code in the correct directory.

app/internal/handler/pinghandler.go

@@ -0,0 +1,29 @@
+package handler
+
+import (
+	"net/http"
+
+	"git.cialloo.com/CiallooWeb/Authenticator/app/internal/logic"
+	"git.cialloo.com/CiallooWeb/Authenticator/app/internal/svc"
+	"git.cialloo.com/CiallooWeb/Authenticator/app/internal/types"
+	"github.com/zeromicro/go-zero/rest/httpx"
+)
+
+// Ping the server to check if it's alive
+func pingHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req types.PingReq
+		if err := httpx.Parse(r, &req); err != nil {
+			httpx.ErrorCtx(r.Context(), w, err)
+			return
+		}
+
+		l := logic.NewPingLogic(r.Context(), svcCtx)
+		resp, err := l.Ping(&req)
+		if err != nil {
+			httpx.ErrorCtx(r.Context(), w, err)
+		} else {
+			httpx.OkJsonCtx(r.Context(), w, resp)
+		}
+	}
+}