Add hover effects and dynamic anchor computation to Station component

- Integrated `onTextHover` callback for handling text hover states.
- Implemented dynamic anchor calculation using `useMemo` for improved positioning.
- Updated visual feedback by highlighting labels on hover.
- Adjusted offset calculations and added interactive pointer movement refinements.
- Added `packageManager` field to `package.json`.

package.json

@@ -56,5 +56,6 @@
     "typescript": "~5.8.3",
     "typescript-eslint": "^8.30.1",
     "vite": "^6.3.5"
-  }
+  },
+  "packageManager": "yarn@1.22.22+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e"
 }