Migrate frontend sources to TypeScript

README.md

@@ -2,7 +2,8 @@
 
 Fresh full-stack starter scaffold:
 
-- `RpgRoller/`: ASP.NET Core backend + static frontend (`wwwroot`)
+- `RpgRoller/`: ASP.NET Core backend + static frontend output (`wwwroot`)
+- `RpgRoller/frontend/`: TypeScript frontend source
 - `RpgRoller.Tests/`: xUnit integration-heavy test project
 - `RpgRoller.sln`: solution used by local CI script
 
@@ -27,7 +28,8 @@ Fresh full-stack starter scaffold:
 ## Frontend Tooling
 
 - OpenAPI contract: `openapi/RpgRoller.json`
-- API client generation: `npm run generate:api-client`
+- TypeScript build output config: `tsconfig.frontend.json`
+- API client generation + frontend compile: `npm run generate:api-client`
 - Frontend lint checks: `npm run lint`
 - Frontend format checks: `npm run format:check`