refactor services to use typescript

server/package-lock.json

@@ -22,8 +22,11 @@
         "uuid": "^11.1.0"
       },
       "devDependencies": {
+        "@types/node": "^25.6.2",
+        "@types/pdf-parse": "^1.1.5",
         "eslint": "^9.22.0",
         "prettier": "^3.5.3",
+        "typescript": "^6.0.3",
         "vitest": "^3.0.0"
       },
       "engines": {
@@ -1092,6 +1095,27 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/node": {
+      "version": "25.6.2",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.6.2.tgz",
+      "integrity": "sha512-sokuT28dxf9JT5Kady1fsXOvI4HVpjZa95NKT5y9PNTIrs2AsobR4GFAA90ZG8M+nxVRLysCXsVj6eGC7Vbrlw==",
+      "dev": true,
+      "license": "MIT",
+      "peer": true,
+      "dependencies": {
+        "undici-types": "~7.19.0"
+      }
+    },
+    "node_modules/@types/pdf-parse": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/@types/pdf-parse/-/pdf-parse-1.1.5.tgz",
+      "integrity": "sha512-kBfrSXsloMnUJOKi25s3+hRmkycHfLK6A09eRGqF/N8BkQoPUmaCr+q8Cli5FnfohEz/rsv82zAiPz/LXtOGhA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@vitest/expect": {
       "version": "3.2.4",
       "resolved": "https://registry.npmjs.org/@vitest/expect/-/expect-3.2.4.tgz",
@@ -4180,6 +4204,20 @@
       "integrity": "sha512-/aCDEGatGvZ2BIk+HmLf4ifCJFwvKFNb9/JeZPMulfgFracn9QFcAf5GO8B/mweUjSoblS5In0cWhqpfs/5PQA==",
       "license": "MIT"
     },
+    "node_modules/typescript": {
+      "version": "6.0.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-6.0.3.tgz",
+      "integrity": "sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=14.17"
+      }
+    },
     "node_modules/underscore": {
       "version": "1.13.8",
       "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.8.tgz",
@@ -4195,6 +4233,13 @@
         "node": ">=20.18.1"
       }
     },
+    "node_modules/undici-types": {
+      "version": "7.19.2",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.19.2.tgz",
+      "integrity": "sha512-qYVnV5OEm2AW8cJMCpdV20CDyaN3g0AjDlOGf1OW4iaDEx8MwdtChUp4zu4H0VP3nDRF/8RKWH+IPp9uW0YGZg==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",