fix: resolve CI/CD test and lint failures

tests/dataforge_fixtures/valid_schema.json

@@ -6,7 +6,39 @@
       "type": "string"
     },
     "version": {
+      "type": "string",
+      "pattern": "^\\d+\\.\\d+\\.\\d+$"
+    },
+    "description": {
       "type": "string"
+    },
+    "author": {
+      "type": "string"
+    },
+    "settings": {
+      "type": "object",
+      "properties": {
+        "debug": {
+          "type": "boolean"
+        },
+        "timeout": {
+          "type": "integer",
+          "minimum": 0
+        },
+        "retries": {
+          "type": "integer",
+          "minimum": 0,
+          "maximum": 10
+        }
+      },
+      "required": ["debug", "timeout"]
+    },
+    "tags": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "minItems": 1
     }
   },
   "required": ["name", "version"]