Build Kantarci Markt as an eighth installation, allow content in own CSS and keep other fonts when fetching

- Coming-soon page "Kantarci Markt – Neueröffnung" rebuilt from the delivered package with
  imprint, privacy and 404 (scripts/reset-kantarci-markt.sh, ports 8100/8101).
- Own CSS accepts a short quoted string for `content`, so ::before/::after work.
- cms:fonts:fetch replaces only the rules of the fetched families in fonts.css.
- A variable font is linked and preloaded once with a weight range instead of once per weight.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.claude/launch.json

@@ -128,6 +128,26 @@
         "$env:APP_ENV='prod'; $env:APP_DEBUG='0'; $env:DATABASE_URL='sqlite:///C:/Django Project/KantSites/var/kantarci-immobilien.db'; $env:MEDIA_DIRECTORY='C:/Django Project/KantSites/var/kantarci-immobilien-media'; $env:SITE_ORIGIN='http://127.0.0.1:8099'; & C:/php84/php.exe -d upload_max_filesize=8M -d post_max_size=10M -d memory_limit=256M -S 127.0.0.1:8099 -t public bin/dev-router.php"
       ],
       "port": 8099
+    },
+    {
+      "name": "kantarci-markt",
+      "runtimeExecutable": "powershell",
+      "runtimeArgs": [
+        "-NoProfile",
+        "-Command",
+        "$env:APP_ENV='dev'; $env:DATABASE_URL='sqlite:///C:/Django Project/KantSites/var/kantarci-markt.db'; $env:MEDIA_DIRECTORY='C:/Django Project/KantSites/var/kantarci-markt-media'; $env:SITE_ORIGIN='http://127.0.0.1:8100'; & C:/php84/php.exe -d upload_max_filesize=8M -d post_max_size=10M -d memory_limit=256M -S 127.0.0.1:8100 -t public bin/dev-router.php"
+      ],
+      "port": 8100
+    },
+    {
+      "name": "kantarci-markt-prod",
+      "runtimeExecutable": "powershell",
+      "runtimeArgs": [
+        "-NoProfile",
+        "-Command",
+        "$env:APP_ENV='prod'; $env:APP_DEBUG='0'; $env:DATABASE_URL='sqlite:///C:/Django Project/KantSites/var/kantarci-markt.db'; $env:MEDIA_DIRECTORY='C:/Django Project/KantSites/var/kantarci-markt-media'; $env:SITE_ORIGIN='http://127.0.0.1:8101'; & C:/php84/php.exe -d upload_max_filesize=8M -d post_max_size=10M -d memory_limit=256M -S 127.0.0.1:8101 -t public bin/dev-router.php"
+      ],
+      "port": 8101
     }
   ]
-}
+}