Fix compose args validation regex syntax error

- Replace problematic character class with positive validation
- Use separate patterns for single args and args with spaces
- Fix bash conditional expression syntax error with character ranges
- Use [[:space:]] instead of literal space in regex

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: owine

.github/workflows/deploy.yml

@@ -101,7 +101,9 @@ jobs:
               exit 1
             fi
             # Validate against known docker compose options
-            if [[ ! "$COMPOSE_ARGS" =~ ^[a-zA-Z0-9 _.-]*$ ]]; then
+            if [[ "$COMPOSE_ARGS" =~ ^[a-zA-Z0-9_.-]+$ ]] || [[ "$COMPOSE_ARGS" =~ ^[a-zA-Z0-9_.-]+[[:space:]][a-zA-Z0-9_.-]+$ ]]; then
+              echo "✅ Compose args format valid: $COMPOSE_ARGS"
+            else
               echo "::error::Compose args contain invalid characters: $COMPOSE_ARGS"
               exit 1
             fi