diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index 64d1182..9a8ca36 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -10,15 +10,35 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout repository
+        uses: actions/checkout@v4
 
-      - name: Setup Node
+      - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
-          cache: 'yarn'
+          node-version: '25'
+          # We handle caching manually below to ensure
+          # corepack-managed yarn is used correctly.
 
-      - name: Install
+      - name: Enable Corepack
+        run: |
+          corepack enable
+          corepack prepare yarn@stable --activate
+
+      - name: Get yarn cache directory path
+        id: yarn-cache-dir-path
+        run: echo "dir=$(yarn cache dir)" >> $GITHUB_OUTPUT
+
+      - name: Persistent Yarn Cache
+        uses: actions/cache@v4
+        id: yarn-cache
+        with:
+          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-yarn-
+
+      - name: Install dependencies
         run: yarn install --frozen-lockfile --prefer-offline
 
       - name: Build Svelte App
diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
index 0ef1c15..33df9a7 100644
--- a/.gitea/workflows/deploy.yml
+++ b/.gitea/workflows/deploy.yml
@@ -15,15 +15,35 @@ jobs:
   pipeline:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout repository
+        uses: actions/checkout@v4
 
-      - name: Setup Node
+      - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
-          cache: 'yarn'
+          node-version: '25'
+          # We handle caching manually below to ensure
+          # corepack-managed yarn is used correctly.
 
-      - name: Install
+      - name: Enable Corepack
+        run: |
+          corepack enable
+          corepack prepare yarn@stable --activate
+
+      - name: Get yarn cache directory path
+        id: yarn-cache-dir-path
+        run: echo "dir=$(yarn cache dir)" >> $GITHUB_OUTPUT
+
+      - name: Persistent Yarn Cache
+        uses: actions/cache@v4
+        id: yarn-cache
+        with:
+          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-yarn-
+
+      - name: Install dependencies
         run: yarn install --frozen-lockfile --prefer-offline
 
       - name: Validation
@@ -35,8 +55,3 @@ jobs:
         run: yarn build
         env:
           NODE_ENV: production
-
-      - name: Deploy Step
-        run: |
-          echo "Deploying dist/ to ${{ github.event.inputs.environment || 'production' }}..."
-          # EXAMPLE: rsync -avz dist/ user@your-vps:/var/www/html/
diff --git a/.gitea/workflows/lint.yml b/.gitea/workflows/lint.yml
index bb9c2c3..c00a8c7 100644
--- a/.gitea/workflows/lint.yml
+++ b/.gitea/workflows/lint.yml
@@ -28,8 +28,14 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
-          cache: 'yarn'
+          node-version: '25'
+          # We handle caching manually below to ensure
+          # corepack-managed yarn is used correctly.
+
+      - name: Enable Corepack
+        run: |
+          corepack enable
+          corepack prepare yarn@stable --activate
 
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
diff --git a/.gitea/workflows/test.yml b/.gitea/workflows/test.yml
index 63b0077..8eb8170 100644
--- a/.gitea/workflows/test.yml
+++ b/.gitea/workflows/test.yml
@@ -11,13 +11,35 @@ jobs:
     name: Svelte Checks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
-        with:
-          node-version: '20'
-          cache: 'yarn'
+      - name: Checkout repository
+        uses: actions/checkout@v4
 
-      - name: Install
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '25'
+          # We handle caching manually below to ensure
+          # corepack-managed yarn is used correctly.
+
+      - name: Enable Corepack
+        run: |
+          corepack enable
+          corepack prepare yarn@stable --activate
+
+      - name: Get yarn cache directory path
+        id: yarn-cache-dir-path
+        run: echo "dir=$(yarn cache dir)" >> $GITHUB_OUTPUT
+
+      - name: Persistent Yarn Cache
+        uses: actions/cache@v4
+        id: yarn-cache
+        with:
+          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-yarn-
+
+      - name: Install dependencies
         run: yarn install --frozen-lockfile --prefer-offline
 
       - name: Type Check
@@ -25,45 +47,3 @@ jobs:
 
       - name: Lint
         run: yarn oxlint .
-
-  # e2e-tests:
-  #   name: E2E Tests (Playwright)
-  #   runs-on: ubuntu-latest
-  #
-  #   steps:
-  #     - name: Checkout repository
-  #       uses: actions/checkout@v4
-  #
-  #     - name: Setup Node.js
-  #       uses: actions/setup-node@v4
-  #       with:
-  #         node-version: '20'
-  #         cache: 'yarn'
-  #
-  #     - name: Install dependencies
-  #       run: yarn install --frozen-lockfile
-  #
-  #     - name: Install Playwright browsers
-  #       run: yarn playwright install --with-deps
-  #
-  #     - name: Run Playwright tests
-  #       run: yarn test:e2e
-  #
-  #     - name: Upload Playwright report
-  #       if: always()
-  #       uses: actions/upload-artifact@v4
-  #       with:
-  #         name: playwright-report
-  #         path: playwright-report/
-  #         retention-days: 7
-  #
-  #     - name: Upload Playwright screenshots (on failure)
-  #       if: failure()
-  #       uses: actions/upload-artifact@v4
-  #       with:
-  #         name: playwright-screenshots
-  #         path: test-results/
-  #         retention-days: 7
-  #
-  # Note: E2E tests are disabled until Playwright setup is complete.
-  # Uncomment this job section when Playwright tests are ready to run.