ci: simplify Mac workflow by removing Node.js dependency

Remove the dependency on Node.js CI job for Mac and iOS builds, and
always build web artifacts locally in the Mac workflow. This simplifies
the CI pipeline and removes the artifact download step that could fail.

Changes:
- Remove `node` dependency from `mac` and `ios` jobs in ci.yml
- Replace artifact download with direct web build in mac.yml
- Simplify the build process by removing conditional logic

This extracts the CI workflow improvements from PR #318.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

.github/workflows/ci.yml

@@ -52,7 +52,7 @@ jobs:
 
   mac:
     name: Mac CI
-    needs: [changes, node]
+    needs: [changes]
     if: |
       always() && 
       !contains(needs.*.result, 'failure') && 
@@ -62,7 +62,7 @@ jobs:
     
   ios:
     name: iOS CI
-    needs: [changes, node]
+    needs: [changes]
     if: |
       always() && 
       !contains(needs.*.result, 'failure') && 

.github/workflows/mac.yml

@@ -141,25 +141,14 @@ jobs:
           fi
         done
     
-    - name: Download web build artifacts
-      uses: actions/download-artifact@v4
-      continue-on-error: true
-      with:
-        name: web-build-${{ github.sha }}
-        path: web/
-    
-    - name: Build web artifacts if missing
+    - name: Build web artifacts
       run: |
-        if [ ! -d "web/dist" ] || [ ! -d "web/public/bundle" ]; then
-          echo "Web build artifacts not found, building locally..."
-          cd web
-          # Skip custom Node.js build in CI to avoid timeout
-          export CI=true
-          pnpm run build
-          echo "Web artifacts built successfully"
-        else
-          echo "Web build artifacts found, skipping local build"
-        fi
+        echo "Building web artifacts locally..."
+        cd web
+        # Skip custom Node.js build in CI to avoid timeout
+        export CI=true
+        pnpm run build
+        echo "Web artifacts built successfully"
     
     - name: Resolve Dependencies (once)
       run: |