add user search in SearchController, add start and end datetime in events table

database/migrations/2025_10_27_211752_create_events_table.php

@@ -15,6 +15,8 @@ return new class extends Migration
             $table->id();
             $table->string('name');
             $table->string('description');
+            $table->dateTime('start')->nullable();
+            $table->dateTime('end')->nullable();
             $table->timestamps();
         });
     }