1.1.0: changelog, README quick start without a clone, help and in-app changelog

The quick start downloads two files and pulls the image; no clone, no
build. README figures brought up to date (it still said Astro 5, 124
tests, 16 migrations). Upgrade notes for 1.0 installs: the volume
ownership change and the basic-ftp NAT behaviour. Help page and in-app
changelog in English and German.

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "klarbild",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "klarbild",
-      "version": "1.0.0",
+      "version": "1.1.0",
       "license": "AGPL-3.0-only",
       "dependencies": {
         "@astrojs/node": "^11.1.7",
@@ -39,7 +39,7 @@
         "typescript": "^5.7.2"
       },
       "engines": {
-        "node": ">=22.6"
+        "node": ">=22.12"
       }
     },
     "node_modules/@astrojs/compiler-binding": {