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>

go.mod

@@ -19,7 +19,7 @@ require (
 	github.com/bytedance/sonic/loader v0.5.0 // indirect
 	github.com/cloudwego/base64x v0.1.6 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
-	github.com/gabriel-vasile/mimetype v1.4.12 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.13 // indirect
 	github.com/goccy/go-yaml v1.19.2 // indirect
 	github.com/golang/snappy v1.0.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
@@ -55,7 +55,7 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
-	github.com/syndtr/goleveldb v1.0.0
+	github.com/syndtr/goleveldb v1.0.0 // indirect
 	github.com/ugorji/go/codec v1.3.1 // indirect
 	golang.org/x/crypto v0.47.0 // indirect
 	golang.org/x/net v0.49.0 // indirect