[vaggeliskls]

This pull request introduces support for Digest authentication (in addition to Basic authentication) for the WebDAV server, allowing users to choose between Basic, Digest, or both authentication methods. It updates configuration, documentation, and runtime scripts to support Digest auth, including the necessary Apache modules and password file generation.

Authentication enhancements:

• Added support for Digest authentication, allowing configuration of AUTH_TYPE as "basic", "digest", or "both" via environment variables in .env and README.md. [1] [2]
• Updated docker-entrypoint.sh to generate Digest password files using htdigest and to configure Apache with the appropriate AuthType and fallback logic for dual Basic+Digest support. [1] [2] [3]
• Modified the Dockerfile to enable the Apache auth_digest module required for Digest authentication.
• Clarified and expanded documentation in docs/examples.md to provide usage examples for Basic, Digest, and dual authentication modes, including relevant curl commands and Docker Compose setups. [1] [2] [3]

Other improvements:

• Updated comments and help text throughout scripts and documentation to reflect the new authentication options and clarify usage.