🗑️ chore: remove outdated instructions and migration documentation

AGENTS.md

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+# AGENTS.md
+
+Tibi CMS starter template — Svelte 5 SPA with esbuild, SSR via goja, and Playwright tests.
+
+## Project overview
+
+- **Frontend**: Svelte 5 SPA in `frontend/src/`, bundled with esbuild, styled with Tailwind CSS 4.
+- **Backend**: tibi-server with API hooks in `api/hooks/`, collections in `api/collections/`.
+- **SSR**: Server-side rendering via goja (Go JS runtime) in `api/hooks/ssr/`.
+- **Tests**: Playwright for E2E, API, mobile, and visual regression tests in `tests/`.
+- **Types**: Shared TypeScript types in `types/global.d.ts`. Keep `tibi-types/` read-only.
+
+## Setup commands
+
+- Install deps: `yarn install`
+- Start dev (Docker): `make docker-up && make docker-start`
+- Start dev (local): `yarn dev`
+- Build frontend: `yarn build`
+- Build SSR bundle: `yarn build:server`
+- Validate types: `yarn validate`
+
+## Development workflow
+
+- Default dev flow is Docker/Makefile: `make docker-up`, `make docker-start`, `make docker-logs`, `make docker-restart-frontend`.
+- Local dev is secondary: `yarn dev` for watch, `yarn build` and `yarn build:server` for production builds.
+- Frontend code is automatically built by watcher and BrowserSync; backend hooks are automatically reloaded on change.
+- Read `.env` for environment URLs and secrets.
+- `webserver/` is for staging/ops only; use BrowserSync/esbuild for day-to-day dev.
+- If development environment is running, access the website at: `https://${PROJECT_NAME}.code.testversion.online/`.
+- To force a restart of the frontend build and dev-server: `make docker-restart-frontend`.
+- To show last X lines of docker logs: `make docker-logs-X`.
+- Esbuild watches for file changes and rebuilds automatically.
+- For a11y testing use MCP a11y tools if available.
+- For quick interactive browser testing, ask the user to connect Playwright MCP (preferred) or Browser MCP (only in non-autonomous/chat mode).
+
+## Testing
+
+- Run all tests: `yarn test`
+- E2E tests: `yarn test:e2e`
+- API tests: `yarn test:api`
+- Visual regression: `yarn test:visual`
+- After code changes, run only affected spec files: `npx playwright test tests/e2e/filename.spec.ts`.
+- Write unit tests for new functionality and ensure existing tests pass.
+
+## API access
+
+- API access to collections uses the reverse proxy: `CODING_URL/api/<collection>` (e.g. `CODING_URL/api/content`).
+- Auth via `Token` header with ADMIN_TOKEN from `api/config.yml.env`.
+
+## Code style
+
+- Follow the existing code style and conventions used in the project.
+- Write clear and concise comments where necessary to explain complex logic.
+- Ensure code is modular and reusable where possible.
+- Avoid introducing new dependencies unless absolutely necessary.
+- Respect a11y and localization best practices; optimize for WCAG AA standards.
+- Check the problems tab for any errors or warnings in the code.