feat: deliver assigned frontend game and staking features

[Spycall]

Summary

Delivers the three open frontend issues assigned to Spycall in one cohesive PR:

• Adds Puzzle Rush with 3-minute, 5-minute, and survival modes, live timer HUD, scoring, streak multipliers, strikes, feedback, and run recap.
• Adds the AI Companion HUD with emotion mapping, typewriter commentary, and mute controls, integrated above the live chessboard.
• Adds the Staking Deposit Modal with XLM/USDC/EURC selection, live CoinGecko USD conversion, balance checks, fee and refundable bond breakdown, and mainnet validation.

Implementation notes

• Puzzle verification accepts an asynchronous onVerifyMove callback so production solutions can remain server-side and are not embedded in client markup.
• Wallet signing remains the responsibility of the caller through the modal's onConfirm callback.
• Existing puzzle practice and live game flows remain available.

Validation

• Editor diagnostics report no errors for all touched files.
• git diff --check passed.
• Build, test, and lint commands were intentionally not run per request.

Closes #1040
Closes #1041
Closes #1044

[drips-wave]

@Spycall Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

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