Upgrade EZWallet UI to premium holographic dark dashboard

[tacticalnoot]

Motivation

• Give the existing EZWallet / Stellar QR MVP a premium, dark holographic silver product surface so it reads like a go-to-market event & power‑user tool while leaving core wallet/QR/payment logic unchanged.
• Maintain QR scannability and Stellar-native payment flow and keep the platform payment destination exactly as configured.

Description

• Restyled and reorganized the EZWallet route into scoped dashboard panels (hero, QR generator, QR preview, bulk event mode, pricing/payment, trust strip) in src/experiments/ezwallet/EZWalletApp.svelte and added a small visual system of scoped classes (.ezwallet-shell, .glass-panel, .holo-button, .holo-text, .stellar-orbit-bg, .qr-frame, .trust-chip, etc.).
• Ensured QR scannability by rendering the generated QR inside a dedicated .qr-frame with a white/high-contrast QR background and quiet-zone padding and increased generated QR size to improve mobile scanning (QRCode.toDataURL(..., width: 320)).
• Preserved all existing intent/wallet/bulk logic (uses the existing buildIntent, encodeIntent, generateBulk, TIERS, PLATFORM_PAYMENT_DESTINATION and USDC constants) and left payment destination and payload rules unchanged.
• Small developer fixes: converted batchRows to a reactive $state array and added standard background-clip for cross-browser compatibility on holographic text.

Testing

• Ran the repository type-check step with npm run -s check, which failed due to pre-existing TypeScript/Svelte errors in unrelated lab/layout components; the failures are not caused by the EZWallet styling changes.
• Addressed a local non-reactive warning in the EZWallet file by making batchRows reactive and fixed a CSS compatibility note, and confirmed no new type errors were introduced by those edits in that file during checks.
• No further automated unit/e2e tests were added or changed as this is a styling/polish pass; manual validation steps are recommended (generate QR, confirm QR image and link, scan with mobile camera, bulk generate/export CSV, verify displayed payment destination matches the required address).

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Codex Task

[cloudflare-workers-and-pages]

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