Add pantry inventory post with styled images

- Add "Where Did I Put the Mochi Flour?" post about pantry organization app
- Add img shortcode for figure/caption support across themes
- Add CSS styling for figures: rounded corners, shadows, centered captions
- Update standup post date to 2026-01-06

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

assets/css/_extra.scss

@@ -153,6 +153,53 @@
   }
 }
 
+// Image and figure styling
+figure {
+  margin: 2rem 0;
+
+  img {
+    display: block;
+    max-width: 100%;
+    height: auto;
+    border-radius: 8px;
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+  }
+
+  figcaption {
+    margin-top: 0.75rem;
+    font-size: 0.9rem;
+    color: var(--secondary-text, #666);
+    text-align: center;
+    font-style: italic;
+  }
+}
+
+// Also style standalone images in posts
+.post-content img:not(figure img) {
+  display: block;
+  max-width: 100%;
+  height: auto;
+  border-radius: 8px;
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+  margin: 2rem auto;
+}
+
+@media (prefers-color-scheme: dark) {
+  figure {
+    img {
+      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
+    }
+
+    figcaption {
+      color: rgba(255, 255, 255, 0.7);
+    }
+  }
+
+  .post-content img:not(figure img) {
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
+  }
+}
+
 // Dark mode support
 @media (prefers-color-scheme: dark) {
   .series-box {