Add redirect stub for archived 3D Globe Visualization URL (#117)

After moving parquet_cesium_isamples_wide.qmd to tutorials/archive/
in #116, the old public URL /tutorials/parquet_cesium_isamples_wide.html
started returning 404, breaking inbound links from Zenodo, emails,
and slides.

Replace it with a short stub that meta-redirects to the Interactive
Explorer (the replacement), provides a canonical link, a visible
fallback link, and points to the archived original for anyone who
needs the historical page.

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

Author: rdhyee

tutorials/parquet_cesium_isamples_wide.qmd

@@ -0,0 +1,19 @@
+---
+title: "3D Globe Visualization (moved)"
+format:
+  html:
+    include-in-header:
+      text: |
+        <meta http-equiv="refresh" content="0; url=/tutorials/progressive_globe.html">
+        <link rel="canonical" href="https://isamples.org/tutorials/progressive_globe.html">
+---
+
+This page has moved. The **3D Globe Visualization** has been superseded by the
+[**Interactive Explorer**](/tutorials/progressive_globe.html), which subsumes
+its functionality with zoom-adaptive H3 clustering and sample-level drilldown.
+
+If your browser does not redirect automatically, open
+[/tutorials/progressive_globe.html](/tutorials/progressive_globe.html).
+
+The original page is archived for historical reference at
+[/tutorials/archive/parquet_cesium_isamples_wide.html](/tutorials/archive/parquet_cesium_isamples_wide.html).