feat(07-01): add frontend display template for job offers

Created DDHH_JM_Template class to display full job details on single job offer pages. Shows logo, organization, location, type, deadline, description, and contact information in a styled layout.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

includes/class-ddhh-job-manager.php

@@ -68,6 +68,9 @@ class DDHH_JM_Job_Manager {
 		// Initialize archive query helper
 		add_action( 'init', array( 'DDHH_JM_Archive', 'setup_hooks' ) );
 
+		// Initialize template display
+		add_action( 'init', array( 'DDHH_JM_Template', 'setup_hooks' ) );
+
 		// Initialize admin UI enhancements (admin-only)
 		if ( is_admin() ) {
 			add_action( 'init', array( 'DDHH_JM_Admin_UI', 'setup_hooks' ) );