v1.1.0

Refactored exception handling and logging.

• Split run method into validate_ipa_file, run_altool, parse_output, handle_result
• Add IPA file existence and extension validation
• Add rescue StandardError for altool execution failures
• Replace tr -d pipe with regex-based plist XML extraction
• Add nil-safe error parsing with dig and fallback to message / Unknown error
• Improve failure log readability with error count and numbered list
• Replace deprecated is_string with type: String
• Add sensitive: true for password parameter masking
• Unify parameter validation with value.to_s.empty?
• Add details and return_value methods
• Add 28 RSpec test cases (99% coverage)