Add CoreData-based workout tracking app with iOS and watchOS targets

- Migrate from SwiftData to CoreData with CloudKit sync
- Add core models: Split, Exercise, Workout, WorkoutLog
- Implement tab-based UI: Workout Logs, Splits, Settings
- Add SF Symbols picker for split icons
- Add exercise picker filtered by split with exclusion of added exercises
- Integrate IndieAbout for settings/about section
- Add Yams for YAML exercise definition parsing
- Include starter exercise libraries (bodyweight, Planet Fitness)
- Add Date extensions for formatting (formattedTime, isSameDay)
- Format workout date ranges to show time-only for same-day end dates
- Add build number update script
- Add app icons

Scripts/update_build_number.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+
+## IMPORTANT ##
+# Add the following files to Input Files configuraiton of the build phase
+# $(TARGET_BUILD_DIR)/$(INFOPLIST_PATH)
+# $(DWARF_DSYM_FOLDER_PATH)/$(DWARF_DSYM_FILE_NAME)/Contents/Info.plist
+
+git=$(sh /etc/profile; which git)
+number_of_commits=$("$git" rev-list HEAD --count)
+git_release_version=$("$git" describe --tags --always --abbrev=0)
+
+target_plist="$TARGET_BUILD_DIR/$INFOPLIST_PATH"
+dsym_plist="$DWARF_DSYM_FOLDER_PATH/$DWARF_DSYM_FILE_NAME/Contents/Info.plist"
+
+git_commit=`"$git" rev-parse --short HEAD`
+bundle_version=`/usr/libexec/PlistBuddy -c "Print :CFBundleShortVersionString" "$target_plist"`
+build_date=`date +%F`
+
+build="v$bundle_version-$git_commit b$number_of_commits $build_date"
+
+#echo "version=$bundle_version-$git_commit build $number_of_commits"
+
+"$git" tag "$bundle_version"
+
+for plist in "$target_plist" "$dsym_plist"; do
+  if [ -f "$plist" ]; then
+    /usr/libexec/PlistBuddy -c "Set :CFBundleVersion $number_of_commits" "$plist"
+#    /usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString ${version}" "$plist"
+#    /usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString ${git_release_version#*v}" "$plist"
+
+    # Add build date for AppInfoKit
+    /usr/libexec/PlistBuddy -c "Set :BuildDate $build_date" "$plist" 2>/dev/null || \
+    /usr/libexec/PlistBuddy -c "Add :BuildDate string $build_date" "$plist"
+  fi
+done