Add schema for Acton projects (#5661)

Author: i582

src/api/json/catalog.json

@@ -9773,6 +9773,12 @@
       "description": "Open standard for AI agent team definitions — declare agents, roles, tools, access policies, and pipelines in a single versioned document",
       "fileMatch": ["*.envelope.json", "team.envelope.json"],
       "url": "https://schema.openenvelope.org/team/v1.json"
+    },
+    {
+      "name": "Acton",
+      "description": "Configuration file for Acton projects",
+      "fileMatch": ["Acton.toml"],
+      "url": "https://raw.githubusercontent.com/ton-blockchain/acton/master/crates/acton-config/schemas/acton.schema.json"
     }
   ]
 }