feat(seo): BreadcrumbList on interior pages + richer LocalBusiness

Add a breadcrumb-ld partial (rendered from breadcrumbName/breadcrumbParent
front-matter) emitting BreadcrumbList JSON-LD on all 11 interior pages
(3-level on the job pages). Enrich homepage LocalBusiness with geo,
areaServed (US), and hasMap. NOTE: geo coords are approximate (Ronkonkoma
ZIP) — set precisely from the Google Business Profile; openingHours and
sameAs omitted pending real hours + non-placeholder social URLs.

.eleventy.js

@@ -21,6 +21,9 @@ module.exports = function (eleventyConfig) {
   // Current year, for the footer (replaces the deprecated document.write pattern).
   eleventyConfig.addShortcode("year", () => `${new Date().getFullYear()}`);
 
+  // JSON-encode a value (for safely emitting strings into JSON-LD).
+  eleventyConfig.addFilter("json", (v) => JSON.stringify(v));
+
   return {
     dir: { input: ".", includes: "_includes", data: "_data", output: "_site" },
     templateFormats: ["njk"],

_includes/base.njk

@@ -50,6 +50,10 @@
 
   {% include "footer.njk" %}
 
+  {%- if breadcrumbName %}
+  {% include "breadcrumb-ld.njk" %}
+  {%- endif %}
+
   <script src="/assets/js/nav.js" defer></script>
   {%- if recaptcha %}
   <script src="/assets/js/form.js" defer></script>

_includes/breadcrumb-ld.njk

@@ -0,0 +1,13 @@
+<script type="application/ld+json">
+{
+  "@context": "https://schema.org",
+  "@type": "BreadcrumbList",
+  "itemListElement": [
+    { "@type": "ListItem", "position": 1, "name": "Home", "item": "{{ site.url }}/" }
+    {%- if breadcrumbParent %},
+    { "@type": "ListItem", "position": 2, "name": {{ breadcrumbParent.name | json | safe }}, "item": "{{ site.url }}{{ breadcrumbParent.url }}" }
+    {%- endif %},
+    { "@type": "ListItem", "position": {{ 3 if breadcrumbParent else 2 }}, "name": {{ breadcrumbName | json | safe }}, "item": "{{ site.url }}{{ page.url }}" }
+  ]
+}
+</script>

about/index.njk

@@ -3,6 +3,7 @@ layout: base.njk
 title: "About — Sea Haven Industries"
 description: "Learn about Sea Haven Industries — your trusted partner in construction with 20 years of experience, expert technicians, and a commitment to excellence."
 pageCss: about
+breadcrumbName: "About"
 ---
   <!-- ── Page Hero ── -->
   <section class="page-hero">

careers/dispatcher/index.njk

@@ -4,6 +4,8 @@ title: "Dispatcher — Sea Haven Industries"
 description: "Apply for the Dispatcher position at Sea Haven Industries. View job details and submit your application today."
 pageCss: jobs
 recaptcha: true
+breadcrumbName: "Dispatcher"
+breadcrumbParent: { name: "Careers", url: "/careers/" }
 ---
   <!-- ── Page Hero ── -->
   <section class="page-hero">

careers/index.njk

@@ -3,6 +3,7 @@ layout: base.njk
 title: "Careers — Sea Haven Industries"
 description: "Join the Sea Haven Industries team. Explore careers opportunities and grow with a company committed to staff development and excellence in construction."
 pageCss: careers
+breadcrumbName: "Careers"
 ---
   <!-- ── Page Hero ── -->
   <section class="page-hero careers-hero">

careers/scheduling-coordinator/index.njk

@@ -4,6 +4,8 @@ title: "Scheduling Coordinator — Sea Haven Industries"
 description: "Apply for the Scheduling Coordinator position at Sea Haven Industries. View job details and submit your application today."
 pageCss: jobs
 recaptcha: true
+breadcrumbName: "Scheduling Coordinator"
+breadcrumbParent: { name: "Careers", url: "/careers/" }
 ---
   <!-- ── Page Hero ── -->
   <section class="page-hero">

careers/traveling-maintenance-assistant/index.njk

@@ -4,6 +4,8 @@ title: "Traveling Maintenance/Electrical Assistant — Sea Haven Industries"
 description: "Apply for the Traveling Maintenance/Electrical Assistant position at Sea Haven Industries. View job details and submit your application today."
 pageCss: jobs
 recaptcha: true
+breadcrumbName: "Traveling Maintenance / Electrical Assistant"
+breadcrumbParent: { name: "Careers", url: "/careers/" }
 ---
   <!-- ── Page Hero ── -->
   <section class="page-hero">

contact/index.njk

@@ -4,6 +4,7 @@ title: "Contact — Sea Haven Industries"
 description: "Get in touch with Sea Haven Industries. Have a question or project idea? Contact us today to discuss your construction and facilities needs."
 pageCss: contact
 recaptcha: true
+breadcrumbName: "Contact Us"
 ---
   <!-- ── Page Hero ── -->
   <section class="page-hero">

eula/index.njk

@@ -4,6 +4,7 @@ title: "End User License Agreement — Sea Haven Industries"
 description: "End User License Agreement for Sea Haven Industries QuickBooks application."
 pageCss: legal
 robots: "noindex, nofollow"
+breadcrumbName: "End User License Agreement"
 ---
   <!-- ── Page Hero ── -->
   <section class="page-hero">

index.njk

@@ -307,6 +307,16 @@ permalink: /index.html
       "minValue": 120
     },
     "foundingDate": "2006",
+    "geo": {
+      "@type": "GeoCoordinates",
+      "latitude": 40.8126,
+      "longitude": -73.1124
+    },
+    "areaServed": {
+      "@type": "Country",
+      "name": "United States"
+    },
+    "hasMap": "https://www.google.com/maps/search/?api=1&query=710+Koehler+Ave+Ronkonkoma+NY+11779",
     "serviceType": ["Electrical Work", "Plumbing", "HVACR Services", "Handyman Services", "Garage Door Repair"]
   }
   </script>

privacy-policy/index.njk

@@ -3,6 +3,7 @@ layout: base.njk
 title: "Privacy Policy — Sea Haven Industries"
 description: "Privacy Policy for Sea Haven Industries. Learn how we collect, use, and protect your personal information."
 pageCss: legal
+breadcrumbName: "Privacy Policy"
 ---
   <!-- ── Page Hero ── -->
   <section class="page-hero">

services/index.njk

@@ -4,6 +4,7 @@ title: "Services — Sea Haven Industries"
 description: "Sea Haven Industries offers reliable electrical, plumbing, HVAC, handyman, and garage door repair services for every need."
 pageCss: services
 recaptcha: true
+breadcrumbName: "Services"
 ---
   <!-- ── Page Hero ── -->
   <section class="page-hero">

social-accountability/index.njk

@@ -3,6 +3,7 @@ layout: base.njk
 title: "Social Accountability — Sea Haven Industries"
 description: "Learn about Sea Haven Industries' commitment to social accountability and responsible business practices in the construction industry."
 pageCss: social
+breadcrumbName: "Social Accountability"
 ---
   <!-- ── Page Hero ── -->
   <section class="page-hero">

terms-of-service/index.njk

@@ -3,6 +3,7 @@ layout: base.njk
 title: "Terms of Service — Sea Haven Industries"
 description: "Terms of Service for Sea Haven Industries. Review the terms and conditions governing your use of the Sea Haven Industries website."
 pageCss: legal
+breadcrumbName: "Terms of Service"
 ---
   <!-- ── Page Hero ── -->
   <section class="page-hero">