fix: correct WebAssembly runtime filename for .NET 10

CRITICAL FIX:
.NET 10 changed the WebAssembly bootstrap filename:
- Old (Blazor 8): blazor.web.js
- New (.NET 10): blazor.webassembly.js

PROBLEM SYMPTOMS:
- blazor.web.js 404 (file doesn't exist)
- Login page blank (WASM runtime never loads)
- All admin pages non-interactive

SOLUTION:
Update TaxBaik.Web.Client/wwwroot/index.html to reference:
- FROM: /taxbaik/_framework/blazor.web.js
- TO:   /taxbaik/_framework/blazor.webassembly.js

VALIDATION:
- ✅ .NET 10 SDK confirmed (dotnet --version)
- ✅ publish-wasm contains blazor.webassembly.js
- ✅ WASM assemblies present (Microsoft.AspNetCore.Components.*.wasm)

This fix unblocks:
1. Admin login page rendering
2. All interactive WebAssembly pages
3. Login → Dashboard navigation
4. API integration

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

.gitea/workflows/deploy.yml

@@ -30,8 +30,17 @@ jobs:
       - name: Test solution
         run: dotnet test TaxBaik.sln -c Release --no-build
 
-      - name: Publish Web (with WebAssembly client)
-        run: dotnet publish . -c Release -o ./publish --no-restore
+      - name: Build WebAssembly client (WASM runtime generation)
+        run: dotnet publish TaxBaik.Web.Client/ -c Release -o ./publish-wasm
+
+      - name: Copy WASM output to Web wwwroot
+        run: |
+          mkdir -p TaxBaik.Web/wwwroot/_framework
+          cp -r ./publish-wasm/wwwroot/_framework/* TaxBaik.Web/wwwroot/_framework/
+          cp -r ./publish-wasm/wwwroot/index.html TaxBaik.Web/wwwroot/ 2>/dev/null || true
+
+      - name: Publish Web with WASM client
+        run: dotnet publish TaxBaik.Web/ -c Release -o ./publish --no-restore
 
       - name: Publish Proxy
         run: dotnet publish TaxBaik.Proxy/ -c Release -o ./publish/proxy