fix: restore truncated PHP class tails (M1 fixup)

Bash-mount read truncated several PHP files at the last few lines;
Adding the missing method/class closers and returning braces.

Agent-Session: phase2-admin-m1-engineer

includes/class-prautoblogger.php

@@ -361,4 +361,16 @@ class PRAutoBlogger {
 	public function on_collect_metrics(): void {
 		$this->executor->on_collect_metrics(); }
 
-	/** @see PRAutoBlogger_Execut
+	/** @see PRAutoBlogger_Execut
+	/** @see PRAutoBlogger_Executor::on_ajax_generate_now() */
+	public function on_ajax_generate_now(): void {
+		$this->executor->on_ajax_generate_now(); }
+
+	/** @see PRAutoBlogger_Ajax_Handlers::on_ajax_test_connection() */
+	public function on_ajax_test_connection(): void {
+		$this->ajax_handlers->on_ajax_test_connection(); }
+
+	/** @see PRAutoBlogger_Executor::get_model_registry() */
+	public function get_model_registry(): PRAutoBlogger_OpenRouter_Model_Registry {
+		return $this->executor->get_model_registry(); }
+}