chore(deps-example): bump flutter_notchpay from 0.1.0 to 0.2.0 in /example

[dependabot]

Bumps flutter_notchpay from 0.1.0 to 0.2.0.

Changelog

Sourced from flutter_notchpay's changelog.

[0.2.0] - 2026-07-28

Added

• Checkout callbacks — NotchPay.checkout() now accepts three optional callback parameters (onSuccess, onCancelled, onError) as a convenient alternative to await-ing the returned Future and switching on the result status. The Future is still returned and both styles can be used together. No breaking change.
• Ready-made theme presets — four named factory constructors on NotchPayThemeData: darkMode() (dark surface, NotchPay violet), emerald() (green accent, white surface), purple() (deep-purple on near-black), and ocean() (sky-blue on dark-navy). All presets are compatible with copyWith() for further customization.
• NotchPayEnvironment (sandbox/live), detected automatically from the public key. NotchPay.instance.environment / .isSandbox / .isLive expose it, and checkout() shows a "Sandbox mode" banner automatically when a test key is detected.
• The checkout sheet now caps its own width and stays centered on tablets, desktop, and web instead of stretching edge-to-edge.
• .github/labels.yml + a sync workflow: repository labels are now defined as code.
• .github/SETUP.md: one-time repository admin checklist (branch protection, pub.dev automated publishing, Codecov, labels).
• doc/USAGE.md: an exhaustive, section-by-section usage guide covering every service, model, and utility this package exposes.

Commits

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