fix(frontend): resolve strict typing and deprecated API diagnostics

Author: vib-tools

.github/workflows/deploy.yml

@@ -24,7 +24,7 @@ jobs:
         uses: actions/setup-node@v7
         with:
           node-version-file: .nvmrc
-          package-manager-cache: false
+          package-manager-cache: true
       - name: Install dependencies
         run: npm install --no-audit --no-fund
       - name: Build production output

.github/workflows/release.yml

@@ -37,7 +37,7 @@ jobs:
         uses: actions/setup-node@v7
         with:
           node-version-file: .nvmrc
-          package-manager-cache: false
+          package-manager-cache: true
       - name: Install Python dependencies
         run: python -m pip install --disable-pip-version-check --upgrade pip -r requirements.txt
       - name: Install frontend dependencies

.github/workflows/validate.yml

@@ -48,7 +48,7 @@ jobs:
         uses: actions/setup-node@v7
         with:
           node-version-file: .nvmrc
-          package-manager-cache: false
+          package-manager-cache: true
       - name: Install dependencies
         run: npm install --no-audit --no-fund
       - name: Check formatting