fix: exclude stories from type-check in plugin-gantt and plugin-calendar

Add **/*.stories.tsx to the exclude array in both packages' tsconfig.json
to fix type-check failures caused by unresolvable @storybook-config/datasource
alias (which is only available in Storybook's Vite config at runtime).

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

packages/plugin-calendar/tsconfig.json

@@ -14,5 +14,5 @@
     "skipLibCheck": true
   },
   "include": ["src"],
-  "exclude": ["node_modules", "dist", "**/*.test.ts", "**/*.test.tsx"]
+  "exclude": ["node_modules", "dist", "**/*.test.ts", "**/*.test.tsx", "**/*.stories.tsx"]
 }

packages/plugin-gantt/tsconfig.json

@@ -14,5 +14,5 @@
     "skipLibCheck": true
   },
   "include": ["src"],
-  "exclude": ["node_modules", "dist", "**/*.test.ts", "**/*.test.tsx"]
+  "exclude": ["node_modules", "dist", "**/*.test.ts", "**/*.test.tsx", "**/*.stories.tsx"]
 }