fix(server): add basic auth support (#16740)

* "add basic auth support"

* "fix format"

* fix: lint

---------

Co-authored-by: Elliot <elliot@elliotbrandwein.com>
Co-authored-by: Jason Rasmussen <jason@rasm.me>

server/src/services/system-config.service.spec.ts

@@ -345,6 +345,11 @@ describe(SystemConfigService.name, () => {
       { should: 'with a trailing slash', externalDomain: 'https://demo.immich.app/' },
       { should: 'without a trailing slash', externalDomain: 'https://demo.immich.app' },
       { should: 'with a port', externalDomain: 'https://demo.immich.app:42', result: 'https://demo.immich.app:42' },
+      {
+        should: 'with basic auth',
+        externalDomain: 'https://user:password@example.com:123',
+        result: 'https://user:password@example.com:123',
+      },
     ];
 
     for (const { should, externalDomain, result } of externalDomainTests) {