Minor cleanup and fixes

Signed-off-by: Sean Du <do4suki@gmail.com>

internal/handler/scenario/reward.go

@@ -1,29 +0,0 @@
-package scenario
-
-import (
-	"encoding/json"
-	"honoka-chan/internal/middleware"
-	"honoka-chan/internal/router"
-	"honoka-chan/internal/session"
-	"honoka-chan/pkg/utils"
-
-	"github.com/gin-gonic/gin"
-)
-
-func reward(ctx *gin.Context) {
-	ss := session.Get(ctx)
-	defer ss.Finalize()
-
-	data := utils.ReadAllText("assets/serverdata/reward.json")
-	var resp map[string]any
-	err := json.Unmarshal([]byte(data), &resp)
-	if ss.CheckErr(err) {
-		return
-	}
-
-	ss.Respond(resp)
-}
-
-func init() {
-	router.AddHandler("main.php", "POST", "/scenario/reward", middleware.Common, reward)
-}