Migrate WordPress site to Hugo

Replaces the WordPress 7.0.2 / HitMag site with a static Hugo build,
deployed by Gitea Actions over rsync/SSH.

Content: 26 files (9 pages + 17 posts) as Markdown page bundles, plus
127 of 165 media attachments. The remaining 38 are media-library
leftovers that appear nowhere on the live site; they are listed in
MIGRATION.md.

The WXR export contains neither media binaries nor widgets, so both were
recovered from the live host before it is retired:
  - tools/fetch_media.py downloads all uploads, capping them at 2000px
  - tools/build_data.py scrapes the "Unsere Mitglieder" and
    "In Erinnerung" widgets into data/*.yaml

TablePress' six Termine tables became data/termine.yaml, rendered with
the newest year expanded and earlier years collapsed. Old permalinks are
not preserved (clean slugs, no redirects, as agreed).

Custom layouts, no third-party theme. Plain CSS, since the pinned Hugo
0.164.0 is the non-extended build and cannot compile Sass.

Verified: clean build with zero warnings, 718 internal links checked and
none broken, no surviving wp-content URLs.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

content/aktuelles/26-o-fahrt-2022/index.md

@@ -0,0 +1,23 @@
+---
+title: "26. O-Fahrt 2023"
+date: 2023-07-01T18:14:00Z
+lastmod: 2023-07-15T11:34:03Z
+tags: ["O-Fahrt"]
+featured: "emblem.png"
+---
+
+![](6-banner.jpg)Die Sieger der diesjährigen Orientierungsfahrt
+
+{{< gallery "4-1.jpeg" "1-2.jpeg" "7-1.jpeg" "8.jpeg" "5-1.jpeg" >}}
+
+#### Liste aller Starter und Platzierungen
+
+{{< pdf "ranking.pdf" "Ergebnisliste O-Fahrt 2023" >}}
+
+#### Das Roadbook der Tour zum selbst abfahren
+
+{{< pdf "roadbook-2023.pdf" "Roadbook 2023" >}}
+
+#### Chronik 25 Jahre Orientierungsfahrt
+
+{{< pdf "25-jahre-o-fahrt.pdf" "25 Jahre O-Fahrt" >}}