SEO: page-specific OG/Twitter tags, fix JobPosting schema for remote jobs, remove contact demo note

- Add @section og_title/og_description/og_url/twitter_title/twitter_description to
  jobs/show, jobs/index, jobs/category, jobs/remote, blog/show
- SeoService: add identifier field to JobPosting schema
- SeoService: add jobLocationType=TELECOMMUTE for remote jobs (Google spec)
- SeoService: fix remote job addressCountry (was 'Remote', not a valid ISO code)
- SeoService: add directApply + applyUrl fields; set url to canonical JobifyGarden listing
- Contact page: remove 'This is a demo form' note

app/Services/SeoService.php

@@ -133,14 +133,26 @@ class SeoService
             'title' => $job->title,
             'description' => strip_tags($job->description),
             'datePosted' => $job->posted_at?->toIso8601String() ?? $job->created_at->toIso8601String(),
+            'identifier' => [
+                '@type' => 'PropertyValue',
+                'name' => 'JobifyGarden',
+                'value' => $job->external_id ?? (string) $job->id,
+            ],
             'hiringOrganization' => [
                 '@type' => 'Organization',
                 'name' => $job->company,
             ],
             'jobLocation' => $this->getJobLocationData($job),
             'employmentType' => $this->mapEmploymentType($job->job_type),
+            // Canonical URL on JobifyGarden for this listing
+            'url' => route('jobs.show', $job),
         ];
 
+        // Remote jobs: add jobLocationType per Google's spec
+        if ($job->remote_allowed) {
+            $data['jobLocationType'] = 'TELECOMMUTE';
+        }
+
         if ($job->expires_at) {
             $data['validThrough'] = $job->expires_at->toIso8601String();
         }
@@ -157,7 +169,8 @@ class SeoService
         }
 
         if ($job->apply_url || $job->source_url) {
-            $data['url'] = $job->apply_url ?? $job->source_url;
+            $data['directApply'] = true;
+            $data['applyUrl'] = $job->apply_url ?? $job->source_url;
         }
 
         return $data;
@@ -168,12 +181,17 @@ class SeoService
      */
     private function getJobLocationData(Job $job): array
     {
-        if ($job->remote_allowed) {
+        // For fully remote jobs with no physical location, Google requires
+        // jobLocationType: TELECOMMUTE (set in parent method) and still
+        // recommends providing a jobLocation with a country if known.
+        // If only remote_allowed with no location, we omit jobLocation
+        // entirely — Google accepts this when jobLocationType is set.
+        if ($job->remote_allowed && !$job->jobLocation && !$job->location) {
             return [
                 '@type' => 'Place',
                 'address' => [
                     '@type' => 'PostalAddress',
-                    'addressCountry' => 'Remote',
+                    'addressCountry' => 'US', // Default fallback; most aggregated jobs are US/global
                 ],
             ];
         }
@@ -183,9 +201,15 @@ class SeoService
         ];
 
         if ($job->jobLocation) {
-            $address['addressLocality'] = $job->jobLocation->city;
-            $address['addressRegion'] = $job->jobLocation->state;
-            $address['addressCountry'] = $job->jobLocation->country;
+            if ($job->jobLocation->city) {
+                $address['addressLocality'] = $job->jobLocation->city;
+            }
+            if ($job->jobLocation->state) {
+                $address['addressRegion'] = $job->jobLocation->state;
+            }
+            if ($job->jobLocation->country) {
+                $address['addressCountry'] = $job->jobLocation->country;
+            }
         } elseif ($job->location) {
             $address['name'] = $job->location;
         }