fix: update post form parent and add Italy 2025 demo trip with GPX routes

- Change pageconfig.parent from '/tracker' to '/trips/japan-korea-2026/dailies'
- Move japan-korea-2026 demo entries to docs/demo/trips/japan-korea-2026/dailies/
- Add Italy 2025 (Tuscany Gravel) demo trip: 5 entries with real Tuscany
  coordinates, plus trip.md, map/stats/stories stubs, and 3 GPX routes

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docs/demo/trips/japan-korea-2026/dailies/2026-03-25-1540-wheels-down-narita.entry/entry.md

@@ -0,0 +1,23 @@
+---
+title: 'Wheels Down at Narita'
+date: '2026-03-25 15:40'
+template: entry
+published: true
+hero_image: ''
+lat: '35.7720'
+lng: '140.3929'
+location_city: 'Tokyo'
+location_country: 'Japan'
+weather_temp_c: 16
+weather_desc: 'Sunny'
+---
+
+Eleven hours of flight time, two mediocre films, and one surprisingly good noodle dish from the trolley. Then the descent through scattered cloud, the first glimpse of grey-green patchwork below, and that particular feeling when the wheels finally touch down on a continent you have never stood on before.
+
+Narita is large and orderly and very, very calm. Immigration moved faster than any airport I have ever been through. The officer looked at my passport, looked at me, stamped it once, and handed it back without a word. That was it. Entry to Japan.
+
+The Narita Express runs direct to Shinjuku. I found a window seat and spent 90 minutes watching the city materialise from the outside in — rice fields giving way to low housing, then arterial roads, then the sudden verticality of central Tokyo rising up all at once as if someone just switched a setting.
+
+The hotel is small but perfect. A room roughly the width of my arms outstretched, a window looking onto a grey concrete wall, and a bed that feels like sleeping on a cloud. I went out for ramen at a place around the corner where you order from a vending machine and sit at a counter alone with a small wooden partition between you and the next person. Nobody spoke. It was the best meal I have had in months.
+
+Tomorrow: Ueno. The forecast says the cherry blossoms may finally be open.