v1.1.1

Changes since v1.1.0

• Added GPL-2.0 LICENSE (matching upstream arduino-heatpumpir) and fixed incorrect MIT attribution in README
• Added HACS validation workflow (hacs/action + hassfest)
• Added issue_tracker to manifest.json, required by HACS integration_manifest validation
• Added local brand icon assets (brand/icon.png, brand/icon@2x.png)
• Fixed manifest.json key ordering for hassfest
• Untracked compiled .pyc files and added .gitignore