feat: E-Hentai metadata provider initial implementation

[wiseCirno]

Added a new metadata provider for E-Hentai.

Features

• Search & Match: Supports both Auto-Identify and Manual Search well.
• Metadata: Grabs titles (original and translated), authors, artists, groups, age ratings, languages, scores, and covers.
• Language Preference: Added a preferredLanguages setting to let user prioritize specific language versions of a series.

Screenshots

Search Results	Metadata Detail

Configuration

Currently, this provider needs to be enabled and configured via the config file. Here is the example:

metadataProviders:
  libraryProviders:
    "YOUR_LIBRARY_ID": # replace with actual library ID
      eHentai:
        priority: 1
        enabled: true
        seriesMetadata:
          thumbnail: false
        preferredLanguages:
          - "zh" # replace with personal preferred languages
          - "en"

Test Dockerhub repository

darinirvana/komf