fix(ios): patch expo-modules-jsi Swift 6 abs() overload ambiguity

.github/workflows/deploy.yml

@@ -54,6 +54,10 @@ jobs:
       # needs Xcode 26+. The macos-15 runner defaults to Xcode 16.4 (Swift 6.1),
       # so the archive fails at SPM resolution. Point the whole toolchain at the
       # Xcode 26.3 that's preinstalled on the image.
+      # Xcode 26.3's Swift 6 compiler also hits an abs() overload-ambiguity bug in
+      # expo-modules-jsi (patched via patches/expo-modules-jsi+*.patch — see Expo
+      # issue #47875). Expo's real fix is Xcode 26.4, not preinstalled on macos-15
+      # yet; bump this to 26.4 and drop the patch once the runner image has it.
       DEVELOPER_DIR: /Applications/Xcode_26.3.app/Contents/Developer
     steps:
       - name: Warn when building a non-main ref

docs/ci-significant-paths.md

@@ -68,6 +68,7 @@ Native / deploy pipeline:
 - `fastlane/` — iOS TestFlight lanes (invoked by `ship-ios.sh`)
 - `eas.json` — EAS build config
 - `Gemfile` — Ruby deps for Fastlane + CocoaPods
+- `patches/` — patch-package fixes applied to node_modules on install (e.g. iOS build fixes for vendored native/Swift sources); a patch can go stale or start/stop applying without any package.json change
 
 ## Does NOT affect (excluded from the trigger list)
 

package.json

@@ -15,6 +15,7 @@
   "main": "expo-router/entry",
   "scripts": {
     "prepare": "node -e \"const {execSync}=require('child_process');try{execSync('git config core.hooksPath scripts/git-hooks',{stdio:'ignore'})}catch(e){}\"",
+    "postinstall": "patch-package",
     "start": "expo start",
     "dev:metro": "node scripts/dev-metro.js",
     "android": "expo run:android",
@@ -137,6 +138,7 @@
     "expo-mcp": "~0.2.1",
     "jest": "^29.7.0",
     "jest-expo": "~57.0.0",
+    "patch-package": "^8.0.1",
     "react-refresh": "^0.18.0",
     "react-test-renderer": "19.2.7",
     "tailwindcss": "^3.4.10",

patches/expo-modules-jsi+57.0.4.patch

@@ -0,0 +1,13 @@
+diff --git a/node_modules/expo-modules-jsi/apple/Sources/ExpoModulesJSI/Coding/JavaScriptCodable+Date.swift b/node_modules/expo-modules-jsi/apple/Sources/ExpoModulesJSI/Coding/JavaScriptCodable+Date.swift
+index 1111111..2222222 100644
+--- a/node_modules/expo-modules-jsi/apple/Sources/ExpoModulesJSI/Coding/JavaScriptCodable+Date.swift
++++ b/node_modules/expo-modules-jsi/apple/Sources/ExpoModulesJSI/Coding/JavaScriptCodable+Date.swift
+@@ -50,7 +50,7 @@
+ /// faithful to `new Date(number)`; the `Date`/string branches pass an already-clipped `getTime()` through.
+ @usableFromInline
+ func dateFromMilliseconds(_ milliseconds: Double) throws -> Date {
+-  guard milliseconds.isFinite, abs(milliseconds) <= maxJavaScriptDateMilliseconds else {
++  guard milliseconds.isFinite, Swift.abs(milliseconds) <= maxJavaScriptDateMilliseconds else {
+     throw InvalidDateException()
+   }
+   return Date(timeIntervalSince1970: milliseconds.rounded(.towardZero) / 1000.0)

scripts/git-hooks/ci-paths.txt

@@ -48,3 +48,4 @@ scripts/
 fastlane/
 eas.json
 Gemfile
+patches/