Add Jest type hints to project

package-lock.json

@@ -13,6 +13,7 @@
         "typescript": "^5.3.3"
       },
       "devDependencies": {
+        "@types/jest": "^29.5.12",
         "jest": "^29.7.0"
       }
     },
@@ -1100,6 +1101,16 @@
         "@types/istanbul-lib-report": "*"
       }
     },
+    "node_modules/@types/jest": {
+      "version": "29.5.12",
+      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-29.5.12.tgz",
+      "integrity": "sha512-eDC8bTvT/QhYdxJAulQikueigY5AsdBRH2yDKW3yveW7svY3+DzN84/2NUgkw10RTiJbWqZrTtoGVdYlvFJdLw==",
+      "dev": true,
+      "dependencies": {
+        "expect": "^29.0.0",
+        "pretty-format": "^29.0.0"
+      }
+    },
     "node_modules/@types/node": {
       "version": "20.11.14",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-20.11.14.tgz",
@@ -4487,6 +4498,16 @@
         "@types/istanbul-lib-report": "*"
       }
     },
+    "@types/jest": {
+      "version": "29.5.12",
+      "resolved": "https://registry.npmjs.org/@types/jest/-/jest-29.5.12.tgz",
+      "integrity": "sha512-eDC8bTvT/QhYdxJAulQikueigY5AsdBRH2yDKW3yveW7svY3+DzN84/2NUgkw10RTiJbWqZrTtoGVdYlvFJdLw==",
+      "dev": true,
+      "requires": {
+        "expect": "^29.0.0",
+        "pretty-format": "^29.0.0"
+      }
+    },
     "@types/node": {
       "version": "20.11.14",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-20.11.14.tgz",

package.json

@@ -21,6 +21,7 @@
     "typescript": "^5.3.3"
   },
   "devDependencies": {
+    "@types/jest": "^29.5.12",
     "jest": "^29.7.0"
   },
   "jest": {