Implement more endpoints & overhaul [2/n]

Drop LevelDB and move all the things to SQLite.

Implemented endpoints:
/api <unit, accessoryMaterialAll>
/api <unit, accessoryTab>
/live/continue
/live/partyList
/unit/favoriteAccessory (WIP)
/unit/sale

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

internal/handler/live/continue.go

@@ -0,0 +1,30 @@
+package live
+
+import (
+	"honoka-chan/internal/middleware"
+	"honoka-chan/internal/router"
+	liveschema "honoka-chan/internal/schema/live"
+	"honoka-chan/internal/session"
+	"time"
+
+	"github.com/gin-gonic/gin"
+)
+
+func continuee(ctx *gin.Context) {
+	ss := session.Get(ctx)
+	defer ss.Finalize()
+
+	ss.Respond(liveschema.ContinueResp{
+		ResponseData: liveschema.ContinueData{
+			BeforeSnsCoin:   100000,
+			AfterSnsCoin:    100000,
+			ServerTimestamp: time.Now().Unix(),
+		},
+		ReleaseInfo: []any{},
+		StatusCode:  200,
+	})
+}
+
+func init() {
+	router.AddHandler("main.php", "POST", "/live/continue", middleware.Common, continuee)
+}