2 - Populate fedi-discover config with http settings and defaults

packages/Lvl0/FediDiscover/config/fedi-discover.php

@@ -3,5 +3,20 @@
 declare(strict_types=1);
 
 return [
-    // Instance list, polling intervals, and HTTP client config land here.
+    'http' => [
+        'timeout' => 10,
+        // Default points at the project site so fediverse admins can always trace a Trove poller
+        // back to the project. Operators running their own deployment should override this via
+        // `php artisan vendor:publish --tag=fedi-discover-config` with their own contact URL.
+        'user_agent' => 'Trove/1.0 (+https://trove.lvl0.xyz)',
+        'max_redirects' => 3,
+    ],
+
+    'defaults' => [
+        // Minimum recommended: 60. Mastodon/Lemmy rate limits apply per-instance.
+        'interval_seconds' => 300,
+    ],
+
+    // Instances are DB-managed (table: fedi_discover_instances).
+    // See the Instance model + admin UI (TBD). No instance list here.
 ];