정수형 UI 숫자 표기 검증

docs/integer-format.md

@@ -0,0 +1,18 @@
+# Integer Formatting Rules
+
+MapleStory Worlds may serialize numeric properties as strings such as `1.0`.
+This is valid numeric data, but it must never be used directly for UI entity
+names or paths because `Card1.0` and `DmgPop_1.0` do not exist.
+
+- Use `self:IntStr(value)` for every numeric suffix in a UI path or entity name.
+- Use `string.format("%d", math.floor(value or 0))` or `FormatNumber` for an
+  integer shown in UI text.
+- Do not concatenate `tostring(number)` into a `/ui/...` path.
+- `tools/deck/gen-slaydeck.mjs` normalizes exact integer strings such as `0.0`
+  to `0` when regenerating `Global/common.gamelogic`.
+
+Run this check after editing card-controller UI paths:
+
+```powershell
+node tools/verify/integer-format.mjs
+```