feat(auth): password hashing service

package-lock.json

@@ -2005,6 +2005,13 @@
         "@babel/types": "^7.28.2"
       }
     },
+    "node_modules/@types/bcryptjs": {
+      "version": "2.4.6",
+      "resolved": "https://registry.npmjs.org/@types/bcryptjs/-/bcryptjs-2.4.6.tgz",
+      "integrity": "sha512-9xlo6R2qDs5uixm0bcIqCeMCE6HiQsIyel9KQySStiyqNl2tnj2mP3DX1Nf56MD6KMenNNlBBsy3LJ7gUEQPXQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/better-sqlite3": {
       "version": "7.6.13",
       "resolved": "https://registry.npmjs.org/@types/better-sqlite3/-/better-sqlite3-7.6.13.tgz",
@@ -2559,6 +2566,15 @@
         "node": ">=6.0.0"
       }
     },
+    "node_modules/bcryptjs": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/bcryptjs/-/bcryptjs-3.0.3.tgz",
+      "integrity": "sha512-GlF5wPWnSa/X5LKM1o0wz0suXIINz1iHRLvTS+sLyi7XPbe5ycmYI3DlZqVGZZtDgl4DmasFg7gOB3JYbphV5g==",
+      "license": "BSD-3-Clause",
+      "bin": {
+        "bcrypt": "bin/bcrypt"
+      }
+    },
     "node_modules/better-sqlite3": {
       "version": "11.10.0",
       "resolved": "https://registry.npmjs.org/better-sqlite3/-/better-sqlite3-11.10.0.tgz",
@@ -7838,6 +7854,7 @@
       "version": "0.1.0",
       "dependencies": {
         "@flashcard/shared": "*",
+        "bcryptjs": "^3.0.3",
         "better-sqlite3": "^11.0.0",
         "drizzle-orm": "^0.33.0",
         "express": "^4.19.0",
@@ -7846,6 +7863,7 @@
         "zod": "^3.23.0"
       },
       "devDependencies": {
+        "@types/bcryptjs": "^2.4.6",
         "@types/better-sqlite3": "^7.6.0",
         "@types/express": "^4.17.0",
         "@types/multer": "^1.4.0",