Redesign EZWallet main and claim pages with polished black-and-silver UX - #142

Motivation

• Make the EZWallet experience professional, straightforward, and user-friendly for both creators (main page) and claimants (drop page).
• Move away from a wireframe look to a clean 4-step flow with clearer hierarchy, readable copy, and a polished black/silver visual system.
• Preserve existing behavior (QR generation, link copy, wallet connect, batch CSV export, and checkout) while improving clarity and trust signals.

Description

• Reworked the main app layout in src/experiments/ezwallet/EZWalletApp.svelte into four clear panels (1: Claim setup, 2: Share & preview, 3: Batch generator, 4: Upgrade options) with updated markup and a black-and-silver card visual system.
• Rebuilt the claim page in src/experiments/ezwallet/EZWalletDropApp.svelte with a focused claim card, structured details (dl grid), improved error/empty states, clearer safety messaging, and new actions (Connect wallet, Copy claim link).
• Added helper UI behavior: a copyIntent action and prettyMode formatter on the drop page, and kept makeOne, bulk, downloadCsv, and checkoutSelectedTier behavior intact on the main page.
• Minor CSS compatibility fix to include the standard background-clip alongside -webkit-background-clip.

Testing

• Ran an automated type/style check with pnpm -s check, which surfaced pre-existing repo-wide Svelte/TypeScript errors and warnings and reported failure (21 errors, 13 warnings); the failures are in unrelated parts of the repo.
• No functional regressions were introduced to the EZWallet intent flow during the changes and basic UI interactions (QR generation, link copy, wallet connect, batch CSV export, checkout link) were preserved by code review.

Codex Task