feat: add holiday management endpoints and jalaali-js dependency

- Added a new endpoint to list holidays for a specific doctor.
- Added a new endpoint to delete a holiday, with access control for doctors and admins.
- Implemented a repository method to retrieve all holidays for a doctor.
- Added jalaali-js library to handle date conversions.

package-lock.json

@@ -11,6 +11,7 @@
                 "@tanstack/react-query": "^5.0.0",
                 "@tanstack/react-table": "^8.0.0",
                 "@types/leaflet": "^1.9.21",
+                "jalaali-js": "^1.2.8",
                 "leaflet": "^1.9.4",
                 "react": "^19.0.0",
                 "react-dom": "^19.0.0",
@@ -5708,6 +5709,12 @@
                 "node": ">=0.10.0"
             }
         },
+        "node_modules/jalaali-js": {
+            "version": "1.2.8",
+            "resolved": "https://registry.npmjs.org/jalaali-js/-/jalaali-js-1.2.8.tgz",
+            "integrity": "sha512-Jl/EwY84JwjW2wsWqeU4pNd22VNQ7EkjI36bDuLw31wH98WQW4fPjD0+mG7cdCK+Y8D6s9R3zLiQ3LaKu6bD8A==",
+            "license": "MIT"
+        },
         "node_modules/jest-regex-util": {
             "version": "30.4.0",
             "resolved": "https://registry.npmjs.org/jest-regex-util/-/jest-regex-util-30.4.0.tgz",