* feat: disable Docker builds for development versions
- Remove dev-latest, main-latest, and dev-* version options from manual triggers
- Skip Docker builds for development versions in workflow_run events
- Only build Docker images for releases (v1.0.0) and prereleases (v1.0.0-alpha1)
- Simplify tags generation logic by removing development branch handling
- Update workflow documentation to reflect release-only Docker strategy
BREAKING CHANGE: Development Docker images are no longer built automatically
* feat: remove dev channel support from Dockerfile
- Remove CHANNEL build argument (no longer needed)
- Simplify download logic to only support release channel
- Remove dev-specific package download paths
- Update BASE_URL to point directly to release directory
- Remove channel label from Docker image metadata
- Streamline version handling (latest vs specific release)
This aligns with the workflow changes that disabled dev Docker builds.
