Migrate APOD archive URLs to science.nasa.gov/apod with backward-compatible malformed URL normalization

[Copilot]

APOD content links are moving from apod.nasa.gov to science.nasa.gov/apod, and existing URL construction/normalization paths needed updating to avoid broken archive/image links during the migration window. This change updates the base source URL and keeps malformed API URL handling compatible with both old and new APOD host patterns.

• Configuration

  • Updated NASA_APOD_SOURCE in .env.example to https://science.nasa.gov/apod/.
  • Existing APOD_SOURCE constant usage remains unchanged and now resolves to the new domain via env config.

• Runtime APOD URL handling

  • Updated APOD malformed URL normalization in public/includes/apod.inc.php to accept both legacy and new APOD prefixes before collapsing to the underlying http... target URL.
  • This preserves behavior for legacy payloads while supporting migrated payloads.

• Documentation/examples

  • Updated APOD URL examples in README.md and inline APOD response comments to the new domain.

$new_apod_img_small = str_replace(
    ['https://apod.nasa.gov/apod/http', 'https://science.nasa.gov/apod/http'],
    'http',
    $apod_data['url']
);

• Fixes [Migration] Neue NASA APOD Website-Links #85

[oliveratgithub]

@copilot Use The dotENV VAR for the partial part, instead of continuing with a hardcoded full string.

[Copilot]

Implemented in 981d2be: replaced the hardcoded new-domain prefix in the malformed APOD URL normalization with an APOD_SOURCE-derived prefix (APOD_SOURCE . 'http'), while keeping legacy apod.nasa.gov compatibility.