feat: classify sensitive columns locally

backend/package-lock.json

@@ -12,14 +12,17 @@
         "@types/pg": "^8.20.3",
         "fastify": "^5.0.0",
         "kysely": "^0.29.5",
+        "libphonenumber-js": "1.13.12",
         "openid-client": "6.8.5",
         "pg": "^8.22.0",
+        "validator": "13.15.35",
         "yaml": "^2.9.0",
         "zod": "^4.4.3"
       },
       "devDependencies": {
         "@testcontainers/postgresql": "^12.1.0",
         "@types/node": "24.13.3",
+        "@types/validator": "13.15.10",
         "tsx": "^4.19.0",
         "typescript": "^5.6.0",
         "vitest": "^2.1.0"
@@ -1329,6 +1332,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/validator": {
+      "version": "13.15.10",
+      "resolved": "https://registry.npmjs.org/@types/validator/-/validator-13.15.10.tgz",
+      "integrity": "sha512-T8L6i7wCuyoK8A/ZeLYt1+q0ty3Zb9+qbSSvrIVitzT3YjZqkTZ40IbRsPanlB4h1QB3JVL1SYCdR6ngtFYcuA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@vitest/expect": {
       "version": "2.1.9",
       "resolved": "https://registry.npmjs.org/@vitest/expect/-/expect-2.1.9.tgz",
@@ -2824,6 +2834,12 @@
         "safe-buffer": "~5.1.0"
       }
     },
+    "node_modules/libphonenumber-js": {
+      "version": "1.13.12",
+      "resolved": "https://registry.npmjs.org/libphonenumber-js/-/libphonenumber-js-1.13.12.tgz",
+      "integrity": "sha512-uLVeV1c9OTk6qkdqnj+mpMD+ZdnZ0szVyWu58HwMmpwkHA1gCEkyjd3veZQXDnuw9KEwSRjcc9B1pS9XKIN1fA==",
+      "license": "MIT"
+    },
     "node_modules/light-my-request": {
       "version": "6.6.0",
       "resolved": "https://registry.npmjs.org/light-my-request/-/light-my-request-6.6.0.tgz",
@@ -4121,6 +4137,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/validator": {
+      "version": "13.15.35",
+      "resolved": "https://registry.npmjs.org/validator/-/validator-13.15.35.tgz",
+      "integrity": "sha512-TQ5pAGhd5whStmqWvYF4OjQROlmv9SMFVt37qoCBdqRffuuklWYQlCNnEs2ZaIBD1kZRNnikiZOS1eqgkar0iw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
     "node_modules/vite": {
       "version": "5.4.21",
       "resolved": "https://registry.npmjs.org/vite/-/vite-5.4.21.tgz",