feat: boot TYPO3 13 with site configs and the theme build

- Site configs for the seven live sites from EP/website, Development
  base variants on *-ep13.ddev.site (DDEV additional_hostnames)
- Webpack Encore build moved to the root, output in
  packages/ep_theme/Resources/Public, public path /_assets/<hash>
- Search UI removed from the kept layouts and partials, as the static
  export already does
- Daytrip room selection and the contingent chain removed (contingent
  import is not ported; no daytrip product has current contingents)
- f:uri.action is final in v13: Uri\AjaxViewHelper invokes it
- Remaining QueryBuilder::execute() and array logicalAnd() calls,
  addRootLineFields, TSFE getData, legacy typo3conf/ext template path
- Rector skips the plugin-to-CType rules; plugins stay list_type

Co-Authored-By: Claude Opus 5.5 <[email protected]>

package.json

@@ -0,0 +1,45 @@
+{
+  "name": "eptheme",
+  "scripts": {
+    "dev": "./node_modules/.bin/encore dev --watch",
+    "build": "NODE_ENV=production ./node_modules/.bin/encore production"
+  },
+  "engines": {
+    "node": ">=20.19.0"
+  },
+  "browserslist": [
+    "defaults"
+  ],
+  "dependencies": {
+    "@hotwired/stimulus": "^3.2.1",
+    "@hotwired/stimulus-webpack-helpers": "^1.0.1",
+    "@iframe-resizer/parent": "^5.3.2",
+    "@splidejs/splide": "^2.4.21",
+    "cooltipz-css": "^1.6.8",
+    "dayjs": "^1.10.6",
+    "flatpickr": "^4.6.9",
+    "glightbox": "^3.0.9",
+    "htmx.org": "^1.9.12",
+    "jquery": "^3.6.0",
+    "leaflet": "^1.7.1",
+    "normalize.css": "^8.0.1",
+    "slick-carousel": "^1.8.1",
+    "sticky-js": "^1.3.0",
+    "stimulus-use": "^0.52.0"
+  },
+  "devDependencies": {
+    "@babel/preset-env": "^7.16.0",
+    "@symfony/webpack-encore": "^4.7.0",
+    "@tailwindcss/aspect-ratio": "^0.4.0",
+    "@tailwindcss/forms": "^0.5.2",
+    "autoprefixer": "^10.4.8",
+    "file-loader": "^6.2.0",
+    "postcss": "^8.4.16",
+    "postcss-loader": "^8.2.1",
+    "sass": "^1.53.0",
+    "sass-loader": "^14.2.1",
+    "sass-mq": "^7.0.1",
+    "tailwindcss": "^3.1.8",
+    "tailwindcss-alt": "^3.0.0"
+  }
+}