chore: consolidate dependabot PRs and update all packages to latest

.github/actions/setup-node/action.yml

@@ -11,7 +11,7 @@ runs:
     - name: Set up Node.js
       uses: actions/setup-node@v6
       with:
-        node-version: '20'
+        node-version: '24'
         cache: 'npm'
         cache-dependency-path: 'src/**/package-lock.json'
 

Directory.Packages.props

@@ -12,8 +12,8 @@
     <PackageVersion Include="coverlet.collector" Version="10.0.1" />
     <PackageVersion Include="AwesomeAssertions" Version="9.5.0" />
     <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="10.0.10" />
-    <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly.Server" Version="10.0.5" />
-    <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly" Version="10.0.5" />
+    <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly.Server" Version="10.0.10" />
+    <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly" Version="10.0.10" />
     <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.10" />
     <PackageVersion Include="Microsoft.DotNet.Interactive.CSharpProject" Version="1.0.0-beta.26222.1" />
     <PackageVersion Include="Microsoft.Playwright" Version="1.61.0" />
@@ -30,7 +30,7 @@
     <PackageVersion Include="System.CommandLine" Version="2.0.10" />
     <PackageVersion Include="System.Drawing.Common" Version="10.0.10" />
     <PackageVersion Include="System.Net.Http" Version="4.3.4" />
-    <PackageVersion Include="System.Reactive" Version="6.1.0" />
+    <PackageVersion Include="System.Reactive" Version="7.0.0" />
     <PackageVersion Include="System.Security.Cryptography.X509Certificates" Version="4.3.2" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />
     <PackageVersion Include="xunit" Version="2.9.3" />

Dockerfile

@@ -6,9 +6,9 @@ WORKDIR /App
 CMD ["bash"]
 
 # Install all required build tools in a single layer (rarely changes — stays cached)
-# This is Node v16. For 18, use nodejs18.
+# Use nodejs24 for Node 24.x (required for ESM-compatible dependencies).
 RUN --mount=type=cache,id=try-tdnf,target=/var/cache/tdnf,sharing=locked \
-    tdnf install -y gawk nodejs npm
+    tdnf install -y gawk nodejs24 nodejs24-npm
 
 # Copy only the files needed to restore dependencies.
 # These layers are cached until a manifest file changes, so routine source edits

VALIDATION_CHECKLIST.md

@@ -0,0 +1,46 @@
+# Pre-Push Validation Checklist
+
+**Before pushing to GitHub, run the complete local validation for all npm packages:**
+
+```bash
+# 1. microsoft-trydotnet
+cd src/microsoft-trydotnet
+npm ci
+npm run buildProd
+
+# 2. microsoft-trydotnet-editor
+cd ../microsoft-trydotnet-editor
+npm ci
+npm run buildProd
+
+# 3. microsoft-trydotnet-styles
+cd ../microsoft-trydotnet-styles
+npm ci
+npm run buildProd
+
+# 4. microsoft-learn-mock
+cd ../microsoft-learn-mock
+npm ci
+npm run buildProd
+```
+
+**All builds must complete without errors.** Warnings are acceptable (e.g., polyglot-notebooks circular dependencies), but any ERROR output means the CI will fail.
+
+## Why This Matters
+
+- `npm install --package-lock-only` only validates lock file syntax; it does NOT catch build/TypeScript errors
+- CI runs the full build and will fail if any package cannot be built
+- Running locally first catches:
+  - TypeScript compilation errors
+  - Missing type definitions
+  - Webpack/bundler issues
+  - Node version compatibility
+  - Module resolution failures
+  - Test failures
+
+## Common Issues to Watch For
+
+1. **TypeScript errors** → Check `tsconfig.json` has `"types": ["node"]` if code uses Node APIs (Buffer, util, etc.)
+2. **Module not found** → Verify dependencies are listed in `package.json`
+3. **Engine version conflicts** → Check that all transitive dependencies support the pinned Node version
+4. **Build cache issues** → Run `npm ci` (not `npm install`) to use exact lock file versions

src/Microsoft.TryDotNet/Microsoft.TryDotNet.csproj

@@ -32,7 +32,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" VersionOverride="10.0.5" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" />
     <Folder Include="wwwroot\api\editor\" />
   </ItemGroup>