add player data operations: update, ban/unban, delete, inventory adjust, storage

Players.Update/Ban/Unban/Delete + List search; new InventoryService.Adjust
and StorageService.Get/Upsert/Delete; IdempotencyKey on wallet adjust;
models regenerated via apigen

models/updateplayerrequest.go

@@ -0,0 +1,10 @@
+// Code generated by apigen. DO NOT EDIT.
+
+package models
+
+import "encoding/json"
+
+type UpdatePlayerRequest struct {
+	Data     json.RawMessage `json:"data,omitempty"`
+	Nickname string          `json:"nickname,omitempty"`
+}