Fix CI: use newer Rust, use npm install instead of npm ci

Author: Smartdevs17

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
           cache-dependency-path: backend/package-lock.json
 
       - name: Install dependencies
-        run: npm ci
+        run: npm install
         working-directory: backend
 
       - name: Run ESLint
@@ -58,7 +58,7 @@ jobs:
           cache-dependency-path: frontend/package-lock.json
 
       - name: Install dependencies
-        run: npm ci
+        run: npm install
         working-directory: frontend
 
       - name: Run ESLint
@@ -76,7 +76,7 @@ jobs:
   contracts:
     name: Smart Contracts (Rust)
     runs-on: ubuntu-latest
-    container: rust:1.75
+    container: rust:1.85
     steps:
       - name: Checkout code
         uses: actions/checkout@v4