Set DEVELOPER_DIR at job level so xcodebuild uses full Xcode (no sudo)

.gitea/workflows/build.yml

@@ -10,14 +10,16 @@ jobs:
   build:
     name: Build .ipa and publish source
     runs-on: macos
+    env:
+      # Point xcodebuild at full Xcode without sudo (sudo hangs in CI).
+      # DEVELOPER_DIR overrides the active developer directory for all steps.
+      DEVELOPER_DIR: /Applications/Xcode.app/Contents/Developer
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
       - name: Select Xcode
         run: |
-          # No sudo — the runner already has Xcode selected; sudo in CI hangs
-          # waiting for a password prompt. Just verify Xcode is present.
           xcodebuild -version
 
       - name: Build unsigned .ipa