refactor(ci): enhance mobile release workflow with emojis and extracted scripts

✨ Enhanced mobile-release.yml workflow:
- 📱 Added emojis to all steps for better visual feedback
- 🔧 Version now automatically extracted from pubspec.yaml
  - No manual version input required
  - Reads from apps/mobile/apps/staff/pubspec.yaml for worker
  - Reads from apps/mobile/apps/client/pubspec.yaml for client
- 📝 Removed manual version input field from workflow

🔨 Created reusable shell scripts in .github/scripts/:
1. extract-version.sh - Extract version from pubspec.yaml
2. generate-tag-name.sh - Generate tag names consistently
3. extract-release-notes.sh - Extract CHANGELOG sections
4. create-release-summary.sh - Generate GitHub Step Summary with emojis

Benefits:
✅ Simpler workflow - just select app and environment
✅ Single source of truth for versions (pubspec.yaml)
✅ Reusable scripts can be used in other workflows
✅ Better error messages and validation
✅ Enhanced visual feedback with emojis
✅ Cleaner workflow file (moved logic to scripts)

.github/scripts/extract-version.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+# Extract version from pubspec.yaml for mobile apps
+# Usage: ./extract-version.sh <app>
+# app: worker or client
+
+set -e
+
+APP=$1
+
+if [ -z "$APP" ]; then
+  echo "❌ Error: App parameter required (worker or client)"
+  exit 1
+fi
+
+# Determine pubspec path
+if [ "$APP" = "worker" ]; then
+  PUBSPEC_PATH="apps/mobile/apps/staff/pubspec.yaml"
+  APP_NAME="Staff Mobile App (Worker)"
+else
+  PUBSPEC_PATH="apps/mobile/apps/client/pubspec.yaml"
+  APP_NAME="Client Mobile App"
+fi
+
+# Check if pubspec exists
+if [ ! -f "$PUBSPEC_PATH" ]; then
+  echo "❌ Error: pubspec.yaml not found at $PUBSPEC_PATH"
+  exit 1
+fi
+
+# Extract version (format: X.Y.Z+buildNumber)
+VERSION_LINE=$(grep "^version:" "$PUBSPEC_PATH")
+if [ -z "$VERSION_LINE" ]; then
+  echo "❌ Error: Could not find version in $PUBSPEC_PATH"
+  exit 1
+fi
+
+# Extract just the semantic version (before the +)
+VERSION=$(echo "$VERSION_LINE" | sed 's/version: *//' | sed 's/+.*//' | tr -d ' ')
+
+# Validate version format
+if ! [[ "$VERSION" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+  echo "❌ Error: Invalid version format in pubspec.yaml: $VERSION"
+  echo "Expected format: X.Y.Z (e.g., 0.1.0)"
+  exit 1
+fi
+
+echo "✅ Extracted version from $PUBSPEC_PATH: $VERSION"
+echo "$VERSION"