ai: Force upgrade to 2026

[ping-localhost]

Summary

Upgrade the panda-status custom integration for Home Assistant 2026 compatibility and improve internal integration stability.

Changes

• Updated dependency pins in pyproject.toml:
  • homeassistant==2026.2.3
  • home-assistant-intents==2026.6.1
• Updated HACS compatibility in hacs.json to 2026.2.3
• Bumped integration version to 2.0.0 in manifest.json
• Refactored config_flow.py
  • removed unused printer_name
  • preserved unique ID setup logic
• Improved entity handling in entity.py
  • unique ID fallback for safer entity registration
• Enhanced select entity logic in select.py
  • better display-name mapping
  • refreshed selection state on coordinator updates
• Improved switch entity update handling in switch.py
• Fixed websocket client async context and timeout behavior in websocket.py
• Cleaned internal imports in tools.py
• Verified linting passes with ruff from the project virtual environment