feat: integrate XSLT Tools with toolbox portal

public/toolbox-app.json

@@ -0,0 +1,41 @@
+{
+  "$schema": "https://git.add-ideas.de/zemion/toolbox-sdk/raw/branch/main/schemas/toolbox-app.v1.schema.json",
+  "schemaVersion": 1,
+  "id": "de.add-ideas.xslt-tools",
+  "name": "XSLT tools",
+  "version": "0.3.2",
+  "description": "Browser-based XML and XSLT transformations with executable-stylesheet trust controls.",
+  "entry": "./",
+  "icon": "./favicon.svg",
+  "categories": ["documents", "xml", "xslt"],
+  "tags": ["transform", "validate", "format", "explain"],
+  "actions": [
+    {
+      "id": "source",
+      "label": "Source",
+      "url": "https://git.add-ideas.de/zemion/xslt-tools/src/tag/v0.3.2"
+    }
+  ],
+  "assets": ["./vendor/saxon/SaxonJS2.js", "./vendor/saxon/LICENSE.txt"],
+  "integration": {
+    "contextVersion": 1,
+    "launchModes": ["navigate", "new-tab"],
+    "embedding": "unsupported"
+  },
+  "requirements": {
+    "secureContext": true,
+    "workers": false,
+    "indexedDb": false,
+    "crossOriginIsolated": false
+  },
+  "privacy": {
+    "processing": "mixed",
+    "fileUploads": true,
+    "telemetry": false,
+    "label": "Stylesheets are executable: after explicit trust they may read same-site app data, contact the network, or navigate away."
+  },
+  "source": {
+    "repository": "https://git.add-ideas.de/zemion/xslt-tools",
+    "license": "AGPL-3.0-only"
+  }
+}