feat(ui): add version and release date to start screen (TOU-26)

[ProduktEntdecker]

Summary

• Display version number and release date in footer below Help/Quit buttons
• Version read from Info.plist (CFBundleShortVersionString)
• Release date manually set (Jan 2026)
• Uses subtle 8pt font in secondary color

Test plan

• Open app and verify version displays at bottom
• Verify version matches Info.plist (currently v1.5.0)

Closes TOU-26

🤖 Generated with Claude Code

Summary by CodeRabbit

• New Features
  • Added app version information footer displaying the current app version and release date.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

The pull request adds a version footer to the main content view in ContentView.swift. The footer displays the app version retrieved from CFBundleShortVersionString and includes a static date "Jan 2026", styled with secondary color and small system font.

Changes

Cohort / File(s)	Change Summary
Version Footer UI App/Sources/ContentView.swift	Adds a Spacer and Text component displaying app version from CFBundleShortVersionString and static date "Jan 2026" with secondary color styling and small system font; positioned above existing padding and frame

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

Possibly related PRs

• touchbarfix#20: Updates CFBundleShortVersionString value that this footer now displays
• touchbarfix#28: Bumps CFBundleShortVersionString from 1.3.0 to 1.4.0, which directly affects the version string shown in the new footer

Poem

🐰 A footer hops into view today,
With version strings on display,
CFBundleShortVersionString takes flight,
Jan 2026 shines bright,
The app now shows its age with delight! 🎉

✨ Finishing touches

• 📝 Generate docstrings

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📜 Recent review details

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Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between def7439 and 01d2733.

📒 Files selected for processing (1)

• App/Sources/ContentView.swift

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