feat: add sort toggle to dailies and stories pages

dailies: reverse Twig output to ascending (matching trip default),
add feed-sort-bar above feed, add sort JS using [data-type] + appendChild.

stories: wrap heading in flex header row with sort button inline,
add sort JS targeting .story-card children of .stories-grid.

CSS: feed-sort-bar (right-aligned button above feed),
stories-listing__header (flex row, baseline-aligned), heading margin moved to header.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vgmzx8VTTTmCskSpQtsLTr

themes/intotheeast/css/style.css

@@ -911,6 +911,12 @@ body::after {
 
 /* ── Trip page filter bar ────────────────────────────────────────────────────── */
 
+.feed-sort-bar {
+    display: flex;
+    justify-content: flex-end;
+    margin-bottom: var(--space-4);
+}
+
 .trip-filter-bar {
     display: flex;
     align-items: center;
@@ -1738,12 +1744,18 @@ body::after {
 
 /* ── Stories listing ──────────────────────────────────────── */
 .stories-listing { padding: var(--space-10) 0; }
+.stories-listing__header {
+    display: flex;
+    align-items: baseline;
+    justify-content: space-between;
+    margin-bottom: var(--space-10);
+}
 .stories-listing__heading {
     font-family: var(--font-display);
     font-size: var(--text-2xl);
     font-weight: 400;
     color: var(--color-ink);
-    margin-bottom: var(--space-10);
+    margin-bottom: 0;
 }
 .stories-grid {
     display: grid;