feat: restore session check on landing page

[will-lp1]

Summary

• derive landing page session state with authClient.useSession
• ensure "Open" CTA displays when a session exists

Testing

• pnpm --filter @saru/app lint
• pnpm test (fails: No tests found)

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https://chatgpt.com/codex/tasks/task_e_68b82c06d39c8325abb207de90f87da4

Summary by CodeRabbit

• Bug Fixes

  • Fixed occasional delays and inconsistencies in detecting login status.
  • Improved redirect behavior after sign-in/sign-out for a smoother flow.

• Refactor

  • Streamlined session handling to react instantly to authentication changes, reducing UI latency.
  • No changes to visible page content or actions beyond more reliable session-aware behavior.

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Project	Deployment	Preview	Comments	Updated (UTC)
cursorforwriting-wkur	Error			Sep 3, 2025 0:02am

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

Replaced manual session state/effect with authClient.useSession(), deriving hasSession from the hook. Removed the useEffect-based getSession() call and related error handling. Existing logic (star count fetch, header/CTA) now consumes the derived hasSession. No exported/public API changes.

Changes

Cohort / File(s)	Summary
Session handling refactor apps/saru/app/page.tsx	Removed local hasSession state and useEffect that called authClient.getSession(); now uses authClient.useSession() and derives hasSession as !!session?.user. Component reactivity to session updates is implicit; other logic remains unchanged aside from using the new hasSession source.

Sequence Diagram(s)

sequenceDiagram
  participant User
  participant PageComponent as Page Component
  participant AuthClient as authClient
  participant GitHubAPI as Star Count API

  rect rgb(240,248,255)
    note over PageComponent: Render
    PageComponent->>AuthClient: useSession()
    AuthClient-->>PageComponent: session (reactive)
    alt session.user exists
      PageComponent->>PageComponent: hasSession = true
      PageComponent->>GitHubAPI: fetch star count
      GitHubAPI-->>PageComponent: star count
    else no session
      PageComponent->>PageComponent: hasSession = false
      note right of PageComponent: Gate CTA / routing based on hasSession
    end
  end

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Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

I twitched my nose at state’s old dance,
Now hooks hum tunes of happenstance.
Session drifts in—no polling fuss,
Reactivity rides the bus.
Stars still sparkle, routes stay clean—
A tidy warren, swift and keen. 🐇✨

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📥 Commits

Reviewing files that changed from the base of the PR and between 1a3d82a and db35412.

📒 Files selected for processing (1)

• apps/saru/app/page.tsx (1 hunks)

✨ Finishing Touches

• 📝 Generate Docstrings

🧪 Generate unit tests

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch codex/add-session-check-to-landing-page

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