chore: update dependencies

Fixes #16

Updated packages:
- @prisma/adapter-pg: 7.6.0 -> 7.8.0
- @prisma/client: 7.6.0 -> 7.8.0
- better-auth: 1.5.6 -> 1.6.9
- next: 16.2.1 -> 16.2.4
- prisma: 7.6.0 -> 7.8.0
- react: 19.2.4 -> 19.2.5
- react-dom: 19.2.4 -> 19.2.5
- @playwright/test: 1.58.2 -> 1.59.1
- tailwindcss: 4.2.2 -> 4.2.4
- react-hook-form: 7.72.0 -> 7.74.0
- And 74 other packages

All 27 Cucumber scenarios pass after update.

package.json

@@ -44,35 +44,35 @@
   },
   "dependencies": {
     "@hookform/resolvers": "^5.2.2",
-    "@prisma/adapter-pg": "^7.6.0",
-    "@prisma/client": "^7.6.0",
+    "@prisma/adapter-pg": "^7.8.0",
+    "@prisma/client": "^7.8.0",
     "@types/bcryptjs": "^2.4.6",
     "bcrypt": "^6.0.0",
     "bcryptjs": "^3.0.3",
-    "better-auth": "^1.5.6",
+    "better-auth": "^1.6.9",
     "glicko2": "^1.2.1",
     "jose": "^6.2.2",
-    "next": "^16.2.1",
+    "next": "^16.2.4",
     "openskill": "^4.1.1",
     "papaparse": "^5.5.3",
     "pg": "^8.20.0",
-    "prisma": "^7.6.0",
-    "react": "^19.2.4",
-    "react-dom": "^19.2.4",
-    "react-hook-form": "^7.72.0",
+    "prisma": "^7.8.0",
+    "react": "^19.2.5",
+    "react-dom": "^19.2.5",
+    "react-hook-form": "^7.74.0",
     "zod": "^4.3.6"
   },
   "devDependencies": {
     "@cucumber/cucumber": "^12.8.2",
-    "@playwright/test": "^1.58.2",
-    "@tailwindcss/postcss": "^4",
+    "@playwright/test": "^1.59.1",
+    "@tailwindcss/postcss": "^4.2.4",
     "@testing-library/jest-dom": "^6.9.1",
     "@testing-library/react": "^16.3.2",
     "@testing-library/user-event": "^14.6.1",
     "@types/bcrypt": "^6.0.0",
-    "@types/bun": "^1.3.11",
+    "@types/bun": "^1.3.13",
     "@types/jsdom": "^28.0.1",
-    "@types/node": "^20",
+    "@types/node": "^20.19.39",
     "@types/papaparse": "^5.5.2",
     "@types/pg": "^8.20.0",
     "@types/react": "^19.2.14",
@@ -80,12 +80,12 @@
     "@vitejs/plugin-react": "^6.0.1",
     "argon2": "^0.44.0",
     "cucumber-pretty": "^6.0.1",
-    "eslint": "^8.57.0",
-    "eslint-config-next": "^16.2.1",
-    "jsdom": "^29.0.1",
-    "tailwindcss": "^4",
+    "eslint": "^8.57.1",
+    "eslint-config-next": "^16.2.4",
+    "jsdom": "^29.1.0",
+    "tailwindcss": "^4.2.4",
     "tsx": "^4.21.0",
-    "typescript": "^5",
-    "vitest": "^4.1.2"
+    "typescript": "^5.9.3",
+    "vitest": "^4.1.5"
   }
 }