Improve Xcode Cloud script with pinned Flutter version and logging

Pin Flutter to 3.27.3, add precache step, add verbose logging
to diagnose CI failures, and suppress non-critical analytics errors.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: bluzername

ios/ci_scripts/ci_post_clone.sh

@@ -1,20 +1,47 @@
 #!/bin/sh
 set -e
 
-# Navigate to project root (ci_scripts is inside ios/)
+echo "=== ci_post_clone.sh starting ==="
+echo "CI_PRIMARY_REPOSITORY_PATH: $CI_PRIMARY_REPOSITORY_PATH"
+echo "CI_WORKSPACE: $CI_WORKSPACE"
+echo "PWD: $(pwd)"
+
+# Navigate to project root
 cd "$CI_PRIMARY_REPOSITORY_PATH"
+echo "=== Changed to project root: $(pwd) ==="
+
+# Install Flutter (pinned to the version used locally)
+echo "=== Installing Flutter 3.27.3 ==="
+git clone https://github.com/flutter/flutter.git --depth 1 -b 3.27.3 "$HOME/flutter"
+export PATH="$HOME/flutter/bin:$HOME/flutter/bin/cache/dart-sdk/bin:$PATH"
 
-# Install Flutter
-git clone https://github.com/flutter/flutter.git --depth 1 -b stable "$HOME/flutter"
-export PATH="$HOME/flutter/bin:$PATH"
+echo "=== Flutter version ==="
+flutter --version
 
 # Disable analytics in CI
-flutter config --no-analytics
-dart --disable-analytics
+flutter config --no-analytics 2>/dev/null || true
+dart --disable-analytics 2>/dev/null || true
+
+# Precache iOS artifacts
+echo "=== Precaching iOS build tools ==="
+flutter precache --ios
 
 # Get Flutter dependencies and generate files (including Generated.xcconfig)
+echo "=== Running flutter pub get ==="
 flutter pub get
 
+# Verify Generated.xcconfig was created
+if [ -f "ios/Flutter/Generated.xcconfig" ]; then
+  echo "=== Generated.xcconfig created successfully ==="
+  cat ios/Flutter/Generated.xcconfig
+else
+  echo "ERROR: Generated.xcconfig was NOT created"
+  exit 1
+fi
+
 # Install CocoaPods dependencies
+echo "=== Running pod install ==="
 cd ios
 pod install
+
+echo "=== ci_post_clone.sh completed successfully ==="