Protected logic

Summary

1. Install playwright-persona. Why it's needed.
2. In test-extend.ts, use definePersona to define a new authentication persona. Explain what a persona is and what steps it has when defining.
3. Go through the createSession, verifySession, and destroySession implementation steps. Summarize when persona will call these methods during the test life-cycle.
4. Create a new fixture called authenticate using the combinePersonas utility from playwright-persona.

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1. Create a new test at tests/e2e/notes-create.test.ts.
2. Use the new authenticate fixture to authenticate as a user persona. Get the returned user object to use its data in the test.
3. Go to a protected route, e.g. to create a new note.
4. Fill in the new note form and submit it.
5. Verify the new note is visible and has the correct content.
6. npm run test:e2e.

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1. Talk a bit more about personas and testing authentication-dependent logic, how it differs from testing authentication itself (where you don't need personas).