feat: extract cms from mp/cms — initial libreshop/cms

Source moved verbatim from mp/cms/ on 2026-04-29; mp was the first
concrete adapter consuming the libreshop toolkit. Builds and publishes
git.librete.ch/libreshop/cms on every main / v* push via the standard
.gitea/workflows/build.yml shared across libreshop components.

src/extensions/documentation/config/settings.json

@@ -0,0 +1,30 @@
+{
+	"openapi": "3.0.1",
+	"info": {
+		"version": "1.0.0",
+		"title": "MUELLERPTINTS. Paperwork",
+		"description": "API Documentation for MUELLERPRINTS. Paperwork",
+		"termsOfService": false,
+		"contact": false,
+		"license": false
+	},
+	"x-strapi-config": {
+		"plugins": [],
+		"path": "/documentation"
+	},
+	"servers": [
+		{
+			"url": "https://localhost:8443/api",
+			"description": "Docker Development"
+		},
+		{
+			"url": "http://localhost:5555/api",
+			"description": "Local Development"
+		}
+	],
+	"security": [
+		{
+			"bearerAuth": []
+		}
+	]
+}