Add templates and tests

src/mcp_server_cli/templates/tool_template.yaml

@@ -0,0 +1,25 @@
+name: my_custom_tool
+description: A description of what your tool does
+
+input_schema:
+  type: object
+  properties:
+    param1:
+      type: string
+      description: Description of param1
+      required: true
+    param2:
+      type: integer
+      description: Description of param2
+      default: 10
+    param3:
+      type: boolean
+      description: Optional boolean parameter
+      default: false
+  required:
+    - param1
+
+annotations:
+  read_only_hint: false
+  destructive_hint: false
+  non_confidential: true