feat: bring back viewport control

packages/operator/config/ascalon_phototaxis.yaml

@@ -2,3 +2,7 @@ codename:
   zh-CN: 趋光之暗 · 阿斯卡纶
   en-US: Phototaxis / Ascalon
 official_id: 202506915
+viewport_left: 20
+viewport_right: -20
+viewport_top: 1
+viewport_bottom: -4

packages/operator/index.ts

@@ -170,10 +170,10 @@ const generateMapping = () => {
             operator.link = operatorName
 
             // add default viewport
-            operator.viewport_left = 0
-            operator.viewport_right = 0
-            operator.viewport_top = 0
-            operator.viewport_bottom = 0
+            if (!operator.viewport_left) operator.viewport_left = 0
+            if (!operator.viewport_right) operator.viewport_right = 0
+            if (!operator.viewport_top) operator.viewport_top = 0
+            if (!operator.viewport_bottom) operator.viewport_bottom = 0
 
             operator.voice_id = skinEntry.voiceId