Update post listing tags to use created field throughout

Tag names changed from posts-date-*/posts-datetime-* to posts-created-*.
Renderer updated to filter, sort, group, and display using the created
field from search.json. Page meta display also updated to drop date/datetime
fallbacks. Samplesite posts and pages updated to match.

https://claude.ai/code/session_013A4egzphocyto9bvZ76dxf

CLAUDE.md

@@ -148,13 +148,13 @@ Embed post lists in pages using fenced blocks:
 
 ````markdown
 ```mdcms
-posts-datetime-reversechronological
+posts-created-reversechronological
 limit: 10
 paginate: yes
 ```
 ````
 
-Reliable tags (others are known-broken): `posts-datetime-chronological-byyearmonth`, `posts-datetime-reversechronological`. Use `created` frontmatter (format: `YYYY-MM-DD HH:MM`) for posts.
+Reliable tags (others are known-broken): `posts-created-chronological-byyearmonth`, `posts-created-reversechronological`. Use `created` frontmatter (format: `YYYY-MM-DD HH:MM`) for posts.
 
 ## Release workflow
 

app/index.html

@@ -1369,14 +1369,14 @@ function fmtDatetime(dtStr) {
 
   function parsePostTagName(name) {
     var m = name.match(
-      /^posts-(date|datetime)-(chronological|reversechronological)(?:-(byyear|byyearmonth|lastyear|lastmonth))?$/
+      /^posts-created-(chronological|reversechronological)(?:-(byyear|byyearmonth|lastyear|lastmonth))?$/
     );
     if (!m) return null;
-    return { field: m[1], order: m[2], modifier: m[3] || null };
+    return { order: m[1], modifier: m[2] || null };
   }
 
   function getPostEntries(parsed, options) {
-    const { field, order, modifier } = parsed;
+    const { order, modifier } = parsed;
 
     // Start with posts from search index
     let posts = (searchIndex || []).filter(function(e) {
@@ -1389,11 +1389,7 @@ function fmtDatetime(dtStr) {
     }
 
     // Field filter
-    if (field === 'datetime') {
-      posts = posts.filter(function(e) { return !!e.datetime; });
-    } else {
-      posts = posts.filter(function(e) { return !!e.date; });
-    }
+    posts = posts.filter(function(e) { return !!e.created; });
 
     // Time-window filter
     if (modifier === 'lastyear' || modifier === 'lastmonth') {
@@ -1402,15 +1398,13 @@ function fmtDatetime(dtStr) {
       if (modifier === 'lastyear') cutoff.setDate(cutoff.getDate() - 365);
       else cutoff.setDate(cutoff.getDate() - 30);
       posts = posts.filter(function(e) {
-        var raw = field === 'datetime' ? e.datetime.replace(' ', 'T') : e.date;
-        return new Date(raw) >= cutoff;
+        return new Date(e.created.replace(' ', 'T')) >= cutoff;
       });
     }
 
     // Sort
-    var sortKey = field === 'datetime' ? 'datetime' : 'date';
     posts.sort(function(a, b) {
-      var da = a[sortKey] || '', db = b[sortKey] || '';
+      var da = a.created || '', db = b.created || '';
       return order === 'chronological' ? da.localeCompare(db) : db.localeCompare(da);
     });
 
@@ -1523,7 +1517,6 @@ function fmtDatetime(dtStr) {
 
     var opts = tag.options;
     var posts = getPostEntries(parsed, opts);
-    var field = parsed.field;
     var modifier = parsed.modifier;
     var paginate = opts.paginate || 'no';
     var limitVal = opts.limit || 'all';
@@ -1532,7 +1525,7 @@ function fmtDatetime(dtStr) {
     // Format each entry
     var formatted = posts.map(function(p) {
       return {
-        display: field === 'datetime' ? fmtDatetime(p.datetime) : fmtDate(p.date),
+        display: fmtDatetime(p.created),
         title: p.title,
         file: p.file
       };
@@ -1565,12 +1558,10 @@ function fmtDatetime(dtStr) {
 
     // Grouped by year (or year+month)
     function getYear(p) {
-      var d = field === 'datetime' ? p.datetime : p.date;
-      return d ? d.substring(0, 4) : 'Unknown';
+      return p.created ? p.created.substring(0, 4) : 'Unknown';
     }
     function getYearMonth(p) {
-      var d = field === 'datetime' ? p.datetime : p.date;
-      return d ? d.substring(0, 7) : 'Unknown';
+      return p.created ? p.created.substring(0, 7) : 'Unknown';
     }
     function monthLabel(ym) {
       var m = parseInt(ym.substring(5, 7), 10);
@@ -2189,12 +2180,12 @@ function fmtDatetime(dtStr) {
     hydrateMdcmsTags();
 
     const firstH = contentEl.querySelector('.md-content h1, .md-content h2');
-    if (firstH && (meta.author || meta.created || meta.date || meta.datetime)) {
+    if (firstH && (meta.author || meta.created)) {
       const metaEl = document.createElement('div');
       metaEl.className = 'page-meta';
       let metaText = '';
       if (meta.author) metaText += meta.author;
-      const displayDate = meta.datetime || meta.date || meta.created;
+      const displayDate = meta.created;
       if (displayDate) {
         if (metaText) metaText += ' | ';
         metaText += 'Published ' + formatDate(displayDate);

app/pages/home.md

@@ -18,7 +18,7 @@ If you want to test `MD-CMS` you can grab `samplesite` from the repo and place t
 ## Reverse chronological (newest first)
 
 ```mdcms
-posts-date-reversechronological
+posts-created-reversechronological
 limit: 3
 paginate: no
 ```
@@ -26,25 +26,25 @@ paginate: no
 ## Chronological (oldest first)
 
 ```mdcms
-posts-date-chronological
+posts-created-chronological
 limit: all
 paginate: none
 ```
 
-## By year (date, reverse chrono)
+## By year (reverse chrono)
 
 ```mdcms
-posts-date-reversechronological-byyear
+posts-created-reversechronological-byyear
 limit: all
 defaultyear: current
 selectyear: yes
 paginate: none
 ```
 
-## By year+month (datetime, chrono)
+## By year+month (chrono)
 
 ```mdcms
-posts-datetime-chronological-byyearmonth
+posts-created-chronological-byyearmonth
 limit: all
 defaultyear: 2024
 selectyear: yes
@@ -53,7 +53,7 @@ selectyear: yes
 ## Last 30 days
 
 ```mdcms
-posts-date-reversechronological-lastmonth
+posts-created-reversechronological-lastmonth
 limit: all
 paginate: none
 ```
@@ -61,7 +61,7 @@ paginate: none
 ## Paginated (2 per page)
 
 ```mdcms
-posts-datetime-reversechronological
+posts-created-reversechronological
 limit: 2
 paginate: yes
 ```

samplesite/pages/blog.md

@@ -11,7 +11,7 @@ Stay up to date with announcements, product updates, and industry insights from
 ## All Posts
 
 ```mdcms
-posts-date-reversechronological-byyear
+posts-created-reversechronological-byyear
 limit: all
 defaultyear: current
 selectyear: yes

samplesite/pages/blog.nb.md

@@ -11,7 +11,7 @@ Bli oppdatert med kunngjøringer, produktoppdateringer og bransjeinnsikter fra A
 ## Alle innlegg
 
 ```mdcms
-posts-date-reversechronological-byyear
+posts-created-reversechronological-byyear
 limit: all
 defaultyear: current
 selectyear: yes

samplesite/posts/2022-q4-report.md

@@ -1,7 +1,6 @@
 ---
 title: Q4 2022 Performance Report
-date: 2022-11-15
-datetime: 2022-11-15 09:00
+created: 2022-11-15 09:00
 author: Sarah Chen
 ---
 

samplesite/posts/2023-analytics-launch.md

@@ -1,7 +1,6 @@
 ---
 title: Introducing Advanced Analytics Dashboard
-date: 2023-03-22
-datetime: 2023-03-22 14:30
+created: 2023-03-22 14:30
 author: David Okonkwo
 ---
 

samplesite/posts/2023-security-update.md

@@ -1,7 +1,6 @@
 ---
 title: Security Update - November 2023
-date: 2023-11-10
-datetime: 2023-11-10 11:45
+created: 2023-11-10 11:45
 author: Security Team
 ---
 

samplesite/posts/2024-roadmap.md

@@ -1,7 +1,6 @@
 ---
 title: 2024 Product Roadmap
-date: 2024-01-30
-datetime: 2024-01-30 10:00
+created: 2024-01-30 10:00
 author: David Okonkwo
 ---
 

samplesite/posts/2024-success-stories.md

@@ -1,7 +1,6 @@
 ---
 title: Q2 2024 Customer Success Stories
-date: 2024-07-08
-datetime: 2024-07-08 15:20
+created: 2024-07-08 15:20
 author: Maria Garcia
 ---
 

samplesite/posts/2026-v9-release.md

@@ -1,7 +1,6 @@
 ---
 title: Version 9.0 Released — A New Era
-date: 2026-04-10
-datetime: 2026-04-10 13:00
+created: 2026-04-10 13:00
 author: Sarah Chen
 ---