chore: harden generation context baseline

prompts/frontend-rules.md

@@ -0,0 +1,56 @@
+# Frontend Rules
+
+The frontend stays a React Admin SPA generated from `domain/*.dsl` and anchored to the existing auth seams.
+
+## Frontend scaffold baseline
+
+- Start frontend initialization from the official Vite React TypeScript scaffold, not from manually assembled files.
+- Preserve a valid Vite workspace baseline, including:
+  - `client/index.html`
+  - `client/tsconfig.json`
+  - `client/vite.config.*`
+  - `client/src/main.tsx`
+- Add React Admin and auth seams on top of that baseline instead of replacing the workspace with a hand-written minimal shell.
+- Do not delete required Vite entry/config files just because the LLM can write a shorter custom setup.
+
+## Forbidden frontend generation patterns
+
+- Do not bootstrap `client/` by hand-writing a pseudo-Vite project from memory.
+- Do not remove `index.html`, `tsconfig*`, or `vite.config.*` after generation.
+- Do not replace standard Vite package scripts with ad hoc commands that break `vite build`, `vite dev`, or `vite preview`.
+- Do not continue React Admin resource generation on top of a degraded frontend workspace without repairing the workspace first.
+
+## Resource generation
+
+- Each entity becomes a React Admin resource with list/create/edit/show views.
+- Resource names must stay aligned with backend path segments.
+- Foreign keys must use `ReferenceInput` / `ReferenceField`.
+
+## Provider seams
+
+- `client/src/dataProvider.ts` is the single authenticated request seam.
+- `client/src/auth/authProvider.ts` is the single React Admin auth seam.
+- Auth logic must not leak into resource components.
+
+## Identity and permissions
+
+- `getIdentity()` must resolve from parsed token claims.
+- `getPermissions()` may expose realm roles for UI awareness.
+- Backend enforcement remains authoritative.
+
+## React Admin compatibility
+
+- Every resource record must include `id`.
+- Natural-key resources must preserve route, update, and sort compatibility with React Admin contracts.
+- Frontend requests must continue to work when the real primary key is not named `id`.
+
+## Reproducibility invariants
+
+- A freshly generated frontend must remain compatible with standard Vite commands such as `npm run dev` and `npm run build`.
+- Missing Vite workspace files or missing local Vite executable wiring is a generation failure, not an acceptable simplification.
+- The generated frontend should fail only on missing installation/env/runtime backend availability, not because the Vite app structure itself is incomplete.
+
+## Recovery rule if frontend workspace degraded
+
+- If required Vite scaffold files are missing or broken, restore the official workspace baseline before editing resources, auth seams, or UI code.
+- Treat workspace repair as higher priority than feature generation, because generated React Admin code on top of a broken Vite workspace is invalid baseline output.