fix: resolve CI/CD issues - all tests pass locally

src/mcp_server_cli/templates/example_tool.json

@@ -1,6 +1,6 @@
 {
   "name": "example_tool",
-  "description": "An example tool definition in JSON format",
+  "description": "An example tool demonstrating JSON format",
   "input_schema": {
     "type": "object",
     "properties": {
@@ -9,10 +9,10 @@
         "description": "The message to process",
         "required": true
       },
-      "uppercase": {
-        "type": "boolean",
-        "description": "Convert to uppercase",
-        "default": false
+      "repeat": {
+        "type": "integer",
+        "description": "Number of times to repeat the message",
+        "default": 1
       }
     },
     "required": ["message"]