test(moderation): wire up userBlocks mock in app harness

Override app.isAuthorBlocked in createModerationAppHarness when a
userBlocks mock is provided. This ensures that application logic
checking block status respects the mock state instead of querying
the uninitialized global singleton, fixing the failure in
handleModerationBlock tests.

Co-authored-by: PR0M3TH3AN <[email protected]>

tests/helpers/moderation-test-helpers.mjs

@@ -272,6 +272,16 @@ export async function createModerationAppHarness(options = {}) {
   app.getActiveModerationThresholds =
     Application.prototype.getActiveModerationThresholds;
 
+  if (options.userBlocks) {
+    app.isAuthorBlocked = function (pubkey) {
+      const normalized = this.normalizeHexPubkey(pubkey);
+      if (normalized && options.userBlocks.isBlocked(normalized)) {
+        return true;
+      }
+      return Application.prototype.isAuthorBlocked.call(this, pubkey);
+    };
+  }
+
   app.defaultModerationSettings = getDefaultModerationSettings();
   app.moderationSettings = { ...app.defaultModerationSettings };