test: retarget form-config and post tests from retired japan-korea-2026 to italy-2026-demo

The japan-korea-2026 trip is retired; italy-2026-demo is the vetted go-forward
fixture (already used by the Playwright suite and matching post-form.md parent).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Np4cMQLF77i664CAQXySzU

scripts/test-form-config.sh

@@ -26,7 +26,7 @@ grep -q "add_page:\|addpage:" "$FORM" && ok "Process action is 'add_page' (plugi
 
 # Config must be in frontmatter, not in the process block
 check_grep "pageconfig block exists in frontmatter"       "^pageconfig:"
-check_grep "parent set to /trips/japan-korea-2026/dailies" "parent: '/trips/japan-korea-2026/dailies'"
+check_grep "parent set to /trips/italy-2026-demo/dailies" "parent: '/trips/italy-2026-demo/dailies'"
 check_grep "slug_field set (determines entry folder name)" "slug_field:"
 check_grep "pagefrontmatter block exists in frontmatter"  "^pagefrontmatter:"
 check_grep "template: entry (creates entry.md filename)"  "template: entry"

scripts/test-post.sh

@@ -7,7 +7,7 @@ set -euo pipefail
 BASE_URL="${GRAV_BASE_URL:-http://localhost:8081}"
 USER="${GRAV_TEST_USER:-}"
 PASS="${GRAV_TEST_PASS:-}"
-TRACKER="user/pages/01.trips/japan-korea-2026/01.dailies"
+TRACKER="user/pages/01.trips/italy-2026-demo/01.dailies"
 COOKIE_JAR="$(mktemp /tmp/grav-test-cookies.XXXXXX)"
 PASS_COUNT=0
 FAIL_COUNT=0