fix(build): resolve production deploy failures in Vercel's function build

.npmrc

@@ -0,0 +1,9 @@
+# rxjs (pulled in transitively via @creit.tech/xbull-wallet-connect, #598)
+# declares tslib as its own dependency, but pnpm's strict per-package
+# isolation has been observed failing to link tslib into rxjs's own nested
+# node_modules on Vercel's cached install (though not on every fresh local
+# install), breaking the production build with "Rolldown failed to resolve
+# import tslib". Hoisting it to root node_modules makes it resolvable via
+# Node's normal upward directory walk regardless of whether that specific
+# nested link is correctly wired.
+public-hoist-pattern[]=tslib

apps/web/package.json

@@ -30,6 +30,7 @@
     "react-i18next": "^17.0.12",
     "recharts": "^3.10.1",
     "tailwind-merge": "^3.6.0",
+    "tslib": "^2.8.1",
     "zustand": "^5.0.15"
   },
   "devDependencies": {

packages/api-core/package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "type": "module",
   "main": "./dist/index.js",
-  "types": "./src/index.ts",
+  "types": "./dist/index.d.ts",
   "scripts": {
     "build": "tsc",
     "test": "vitest run --passWithNoTests",

packages/shared/package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "type": "module",
   "main": "./dist/index.js",
-  "types": "./src/index.ts",
+  "types": "./dist/index.d.ts",
   "scripts": {
     "build": "tsc",
     "test": "vitest run --passWithNoTests",

packages/stellar-sdk-helpers/package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "type": "module",
   "main": "./dist/index.js",
-  "types": "./src/index.ts",
+  "types": "./dist/index.d.ts",
   "scripts": {
     "build": "tsc",
     "test": "vitest run --passWithNoTests",

scripts/build-vercel.sh

@@ -16,6 +16,13 @@ esbuild "$ROOT/packages/api-core/src/index.ts" \
   --bundle --platform=node --format=esm --packages=external \
   --outfile="$ROOT/packages/api-core/dist/index.js"
 
+# esbuild above only emits JS; package.json#types now points at
+# dist/index.d.ts, so generate that too.
+echo "▶ Emitting type declarations for Vercel's function build…"
+tsc --project "$ROOT/packages/shared/tsconfig.json" --emitDeclarationOnly
+tsc --project "$ROOT/packages/stellar-sdk-helpers/tsconfig.json" --emitDeclarationOnly
+tsc --project "$ROOT/packages/api-core/tsconfig.json" --emitDeclarationOnly
+
 echo "▶ Cleaning output directory…"
 rm -rf "$OUT"
 mkdir -p "$OUT"