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- XP packs in the store (coin-priced, intentionally expensive): xp1 200/5k, xp2 600/12k, xp3 1500/25k. Consumable (grant XP, can level up) — server ShopBuy handles kind "xp" via an authoritative XpPacks map + Gamification.GrantXp; mock mirrors. New shop section + shop.xp/xpHint i18n. - Every game grants XP and the WINNER earns 2x: matchXp is now base*(won?2:1)*leagueFactor (was a flat +80 win bonus). Mirrored server-side. - Premium (pro) perks: 1.5x XP multiplier (applied in applyMatchResult / ApplyMatch by plan), plus animated shimmering gold chat bubbles for your own messages (premium-chat CSS; ChatScreen gates on plan). Verified: tsc + next + dotnet build clean; sim passes; live server — buying xp2 took L1→L3 and deducted 12k coins under the new curve. Images rebuilt :1500/:1505. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>