clean up logs, delete cached data when atproto account is deleted

pkg/appview/jetstream/processor_test.go

@@ -691,4 +691,27 @@ func TestProcessAccount(t *testing.T) {
 	if !exists {
 		t.Error("User should still exist after multiple deactivation events")
 	}
+
+	// Test 6: Process account deletion - should delete user data
+	err = processor.ProcessAccount(context.Background(), testDID, false, "deleted")
+	if err != nil {
+		t.Logf("Cache invalidation error during deletion (expected): %v", err)
+	}
+
+	// User should be deleted after "deleted" status
+	err = db.QueryRow(`
+		SELECT EXISTS(SELECT 1 FROM users WHERE did = ?)
+	`, testDID).Scan(&exists)
+	if err != nil {
+		t.Fatalf("Failed to check if user exists after deletion: %v", err)
+	}
+	if exists {
+		t.Error("User should NOT exist after deletion event")
+	}
+
+	// Test 7: Process deletion for already-deleted user (idempotent)
+	err = processor.ProcessAccount(context.Background(), testDID, false, "deleted")
+	if err != nil {
+		t.Errorf("Deletion of non-existent user should not error, got: %v", err)
+	}
 }