v4.0.1

• Improved authentication and session handling across regions (including Norway), with more resilient SSO flow behavior and cleaner failure handling.
• Improved integration architecture and reliability, including setup-path simplifications and safer startup behavior.
• Improved logging and diagnostics: added function-name log context, reduced noise, and improved diagnostics export/troubleshooting support.
• Improved long-term stability of entities/devices by migrating identity handling to config-entry-based IDs to avoid duplicate/orphaned entities across restarts.
• Improved dashboard UX and maintainability: better card/source behavior, clearer labels/errors, and stronger runtime config/test coverage.
• Improved developer quality gates and docs organization to keep releases more predictable.