Add quick access panel, app icon, and App Store fixes

[JasperNoBoxDev]

Summary

• Quick Access Panel: Global hotkey (Cmd+Shift+K) opens a floating panel near the cursor to search and copy secrets with Touch ID. Clipboard auto-clears after 30s. Smart extraction for structured types (password from login, primary key from api_key).
• App Icon: Hexagonal key design in NoBoxDev brand style, all 10 required macOS sizes (16pt–512pt @2x).
• App Store Validation Fixes:
  • LSApplicationCategoryType set to public.app-category.utilities in Info.plist
  • App sandbox enabled with network client/server entitlements
  • Full icon set in ICNS-compatible format

New files

• NBox/HotkeyManager.swift — Carbon global hotkey registration (Cmd+Shift+K)
• NBox/QuickAccessPanel.swift — Floating NSPanel + SwiftUI search/copy UI

Test plan

• Press Cmd+Shift+K from any app — panel appears near cursor
• Type to filter secrets in the panel
• Click a secret — Touch ID prompt — value copied to clipboard
• Press Esc or Cmd+Shift+K again to dismiss
• Clipboard auto-clears after 30 seconds
• Login-type secrets copy password, API key copies primary key
• Archive and validate — no LSApplicationCategoryType, sandbox, or icon errors
• App icon visible in Dock and App Store Connect

🤖 Generated with Claude Code

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