Fix native binding error: use npm install instead of npm ci

@tailwindcss/oxide has platform-specific native bindings. The
package-lock.json was generated on a different platform, so npm ci
installs the wrong native binary. Switching to rm -rf node_modules
+ npm install lets npm resolve the correct platform-specific
optional dependency (e.g., @tailwindcss/oxide-linux-x64-gnu on
Linux, oxide-darwin-arm64 on macOS).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/build-app.yml

@@ -81,21 +81,27 @@ jobs:
           else
             curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable
           fi
-          echo "$HOME/.cargo/bin" >> $GITHUB_PATH
+          export PATH="$HOME/.cargo/bin:$PATH"
           rustc --version
           cargo --version
 
       - name: Install frontend dependencies
         working-directory: ./app
-        run: npm ci
+        run: |
+          rm -rf node_modules
+          npm install
 
       - name: Install Tauri CLI
         working-directory: ./app
-        run: npx tauri --version || npm install @tauri-apps/cli
+        run: |
+          export PATH="$HOME/.cargo/bin:$PATH"
+          npx tauri --version || npm install @tauri-apps/cli
 
       - name: Build Tauri app
         working-directory: ./app
-        run: npx tauri build
+        run: |
+          export PATH="$HOME/.cargo/bin:$PATH"
+          npx tauri build
 
       - name: Collect artifacts
         run: |
@@ -136,7 +142,7 @@ jobs:
     steps:
       - name: Install Node.js
         run: |
-          if command -v node &>/dev/null; then
+          if command -v node >/dev/null 2>&1; then
             echo "Node.js already installed: $(node --version)"
           else
             echo "Installing Node.js 22 via Homebrew..."
@@ -176,22 +182,28 @@ jobs:
           else
             curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable
           fi
-          echo "$HOME/.cargo/bin" >> $GITHUB_PATH
+          export PATH="$HOME/.cargo/bin:$PATH"
           rustup target add aarch64-apple-darwin x86_64-apple-darwin
           rustc --version
           cargo --version
 
       - name: Install frontend dependencies
         working-directory: ./app
-        run: npm ci
+        run: |
+          rm -rf node_modules
+          npm install
 
       - name: Install Tauri CLI
         working-directory: ./app
-        run: npx tauri --version || npm install @tauri-apps/cli
+        run: |
+          export PATH="$HOME/.cargo/bin:$PATH"
+          npx tauri --version || npm install @tauri-apps/cli
 
       - name: Build Tauri app (universal)
         working-directory: ./app
-        run: npx tauri build --target universal-apple-darwin
+        run: |
+          export PATH="$HOME/.cargo/bin:$PATH"
+          npx tauri build --target universal-apple-darwin
 
       - name: Collect artifacts
         run: |