fix: adjust Stan 5+ account volume pricing from $300 to $350

8 accounts à la carte now costs $3,100 vs $2,500 label package (19%
savings), making the label package a clear value proposition over
piecemeal buying.

https://claude.ai/code/session_01Hhzb7KfSTyigWiU87X24KB

Author: claude

packages/const/src/nyc.constants.ts

@@ -53,7 +53,7 @@ export const NYC_STAN: StanConfig = {
 	igReelsAddon: 150,
 	volumePricing: {
 		twoToFour: 400,
-		fivePlus: 300,
+		fivePlus: 350,
 	},
 	labelPackage: {
 		price: 2500,