Add apple sso continue button

[romanivan-flamingo]

Summary by CodeRabbit

• New Features
  • Added Apple single sign-on support for login, registration, and invitation acceptance.
  • Apple sign-on options now appear on supported Apple devices when available.
  • Google and Microsoft sign-on options remain supported.
• Bug Fixes
  • Improved provider filtering to prevent unsupported Apple options from appearing on non-Apple devices.
  • Updated authentication flows to correctly accept Apple sign-on requests.

[coderabbitai]

📝 Walkthrough

Walkthrough

Apple SSO support was added to shared authentication contracts and to login, signup, registration, and invitation flows. Apple providers are detected and exposed only on Apple platforms. The platform check is hydration-safe.

Changes

Apple SSO authentication

Layer / File(s)	Summary
Platform detection and provider contracts package.json, src/lib/platform.ts, src/app/hooks/use-apple-platform.ts, src/lib/auth-api-client.ts, src/app/(auth)/auth/hooks/use-auth.ts	The frontend core dependency was updated. Apple platform detection and hydration-safe React state were added. Organization registration and invitation SSO contracts now accept apple.
Login and registration provider filtering src/app/(auth)/auth/pages/login-page.tsx, src/app/(auth)/auth/pages/auth-page.tsx, src/app/(auth)/auth/pages/signup-page.tsx	Login, registration, and signup now map Apple, show it only on Apple platforms when supported by the backend, and reject only the internal openframe provider.
Invitation SSO provider handling src/app/(auth)/auth/invite/page.tsx	The invitation flow maps Apple, filters it by Apple platform availability, and accepts mapped providers other than openframe.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Suggested reviewers: oleksandr-blip

Sequence Diagram(s)

sequenceDiagram
  participant Browser
  participant LoginPage
  participant useIsApplePlatform
  participant Backend
  Browser->>LoginPage: open login page
  LoginPage->>useIsApplePlatform: read platform state
  useIsApplePlatform-->>LoginPage: return Apple platform boolean
  LoginPage->>Backend: request available SSO providers
  Backend-->>LoginPage: return configured providers
  LoginPage-->>Browser: render filtered SSO providers

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🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title identifies Apple SSO, which is the main feature, but it describes the change narrowly as a continue button.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch hotfix/apple-sso-continue-button

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[coderabbitai]

🧹 Nitpick comments (1)

src/lib/platform.ts (1)

82-93: 🎯 Functional Correctness | 🔵 Trivial | ⚡ Quick win

Add regression coverage for all Apple-platform branches.

This helper controls whether the Apple SSO button is rendered. Test SSR, Capacitor iOS, Capacitor Android, macOS, iOS/iPadOS user agents, and a non-Apple user agent.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@src/lib/platform.ts` around lines 82 - 93, Add regression tests for
isApplePlatform covering SSR, Capacitor iOS, Capacitor Android, macOS,
iOS/iPadOS user agents, and a non-Apple user agent. Mock the relevant window,
user-agent, isMobileShell, and mobilePlatform conditions so both the
mobile-shell and browser branches return the expected boolean values.

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Nitpick comments:
In `@src/lib/platform.ts`:
- Around line 82-93: Add regression tests for isApplePlatform covering SSR,
Capacitor iOS, Capacitor Android, macOS, iOS/iPadOS user agents, and a non-Apple
user agent. Mock the relevant window, user-agent, isMobileShell, and
mobilePlatform conditions so both the mobile-shell and browser branches return
the expected boolean values.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 82c8680c-fb8b-49c0-92a8-b89b16e2e8be

📥 Commits

Reviewing files that changed from the base of the PR and between f4246d8 and bfaa9e6.

⛔ Files ignored due to path filters (1)

• package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (9)

• package.json
• src/app/(auth)/auth/hooks/use-auth.ts
• src/app/(auth)/auth/invite/page.tsx
• src/app/(auth)/auth/pages/auth-page.tsx
• src/app/(auth)/auth/pages/login-page.tsx
• src/app/(auth)/auth/pages/signup-page.tsx
• src/app/hooks/use-apple-platform.ts
• src/lib/auth-api-client.ts
• src/lib/platform.ts