refactor: restructure dashboard UX and migrate logos to provider level

- Move job submission form to separate view (?action=new_job)
- Replace inline form with prominent green button on main dashboard
- Migrate logos from per-job (post thumbnail) to per-provider (user meta)
- Add logo upload/removal functionality to provider dashboard
- Display provider logo on single job pages instead of per-job logo
- Add back link to archive on single job pages
- Remove logo handling from form submission/edit processors
- Improve button styling with proper CSS specificity

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

includes/class-formidable.php

@@ -474,7 +474,6 @@ class DDHH_JM_Formidable {
 		$job_type          = '';
 		$job_deadline      = '';
 		$job_contact_email = '';
-		$job_logo          = '';
 
 		foreach ( $entry->metas as $field_id => $value ) {
 			$field = FrmField::getOne( $field_id );
@@ -501,9 +500,6 @@ class DDHH_JM_Formidable {
 				case 'job_contact_email':
 					$job_contact_email = sanitize_email( $value );
 					break;
-				case 'job_logo':
-					$job_logo = $value; // File ID
-					break;
 			}
 		}
 
@@ -541,12 +537,6 @@ class DDHH_JM_Formidable {
 			update_post_meta( $post_id, 'job_deadline', $job_deadline );
 		}
 
-		// Handle logo upload if present
-		if ( ! empty( $job_logo ) && is_numeric( $job_logo ) ) {
-			set_post_thumbnail( $post_id, absint( $job_logo ) );
-			error_log( 'DDHH Job Submission: Logo set as featured image' );
-		}
-
 		error_log( 'DDHH Job Submission: Job offer created successfully' );
 
 		do_action( 'ddhh_job_submitted', $post_id, $entry_id );
@@ -599,7 +589,6 @@ class DDHH_JM_Formidable {
 		$job_type          = '';
 		$job_deadline      = '';
 		$job_contact_email = '';
-		$job_logo          = '';
 
 		foreach ( $entry->metas as $field_id => $value ) {
 			$field = FrmField::getOne( $field_id );
@@ -632,10 +621,6 @@ class DDHH_JM_Formidable {
 				case 'job_contact_email2':
 					$job_contact_email = sanitize_email( $value );
 					break;
-				case 'job_logo':
-				case 'job_logo2':
-					$job_logo = $value; // File ID
-					break;
 			}
 		}
 
@@ -672,12 +657,6 @@ class DDHH_JM_Formidable {
 			update_post_meta( $post_id, 'job_deadline', $job_deadline );
 		}
 
-		// Handle logo upload if present
-		if ( ! empty( $job_logo ) && is_numeric( $job_logo ) ) {
-			set_post_thumbnail( $post_id, absint( $job_logo ) );
-			error_log( 'DDHH Job Edit: Logo updated' );
-		}
-
 		error_log( 'DDHH Job Edit: Job offer updated successfully' );
 
 		do_action( 'ddhh_job_edited', $post_id, $entry_id );
@@ -1159,11 +1138,6 @@ class DDHH_JM_Formidable {
 			case 'job_contact_email2':
 				$value = get_post_meta( $post_id, 'job_contact_email', true );
 				return $value ? $value : $default_value;
-
-			case 'job_logo':
-			case 'job_logo2':
-				$value = get_post_thumbnail_id( $post_id );
-				return $value ? $value : $default_value;
 		}
 
 		return $default_value;

includes/class-template.php

@@ -40,7 +40,8 @@ class DDHH_JM_Template {
 		$job_type          = get_post_meta( $post->ID, 'job_type', true );
 		$job_deadline      = get_post_meta( $post->ID, 'job_deadline', true );
 		$job_contact_email = get_post_meta( $post->ID, 'job_contact_email', true );
-		$job_logo          = get_the_post_thumbnail( $post->ID, 'job-logo' );
+		$provider_logo_id  = get_user_meta( $post->post_author, 'ddhh_provider_logo', true );
+		$job_logo          = $provider_logo_id ? wp_get_attachment_image( absint( $provider_logo_id ), 'job-logo' ) : '';
 
 		// Get author/organization info
 		$author      = get_userdata( $post->post_author );
@@ -50,6 +51,9 @@ class DDHH_JM_Template {
 		// Build job details HTML
 		ob_start();
 		?>
+		<div class="ddhh-back-to-archive">
+			<a href="<?php echo esc_url( get_post_type_archive_link( 'job_offer' ) ); ?>">← Alle Jobangebote</a>
+		</div>
 		<div class="ddhh-job-offer-details">
 			<?php if ( $job_logo ) : ?>
 				<div class="job-logo">
@@ -118,6 +122,18 @@ class DDHH_JM_Template {
 			<?php endif; ?>
 
 			<style>
+				.ddhh-back-to-archive {
+					margin-bottom: 1.5rem;
+				}
+				.ddhh-back-to-archive a {
+					color: #3b82f6;
+					text-decoration: none;
+					font-weight: 500;
+				}
+				.ddhh-back-to-archive a:hover {
+					color: #2563eb;
+					text-decoration: underline;
+				}
 				.ddhh-job-offer-details {
 					margin: 2em 0;
 				}