feat: implement Settings views

[2witstudios]

Summary

• SettingsView.swift — full server management: server list with connect/tap, swipe-to-delete with confirmation dialog, test connection button with async success/failure feedback, QR scanner sheet integration, connection status badge, about section with dynamic app version and GitHub link
• AddServerView.swift — dedicated form view for manual server entry (name, host, port, token) with input validation, replacing the limited alert-based approach

Acceptance Criteria

• Server list with add/delete
• QR scanner button (launches QRScannerView, parses result, adds connection)
• Test connection button with success/failure feedback
• Server deletion with confirmation dialog
• About section (app version, links)
• Manual entry form (name, host, port, token)

Dependencies

• ServerConnection model from Implement iOS data models #77
• AppState from Implement iOS state management (AppState + ManifestStore) #82
• QRScannerView from Implement QR scanner #81

Closes #86

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📥 Commits

Reviewing files that changed from the base of the PR and between 34deb69 and 75ec34a.

📒 Files selected for processing (3)

• ios/PPGMobile/PPGMobile/Views/Settings/AddServerView.swift
• ios/PPGMobile/PPGMobile/Views/Settings/SettingsView.swift
• src/commands/spawn.test.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch ppg/issue-86-settings-views

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