fix: replace Process.sleep(1) with nanosecond timestamp for card ID generation#3
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…eneration The previous implementation used Process.sleep(1) to prevent card ID collisions, which significantly impacts performance when creating multiple cards. This change uses nanosecond timestamps combined with a random component for unique IDs without blocking. - Removes Process.sleep(1) bottleneck - Uses Bitwise.bxor for combining timestamp and random component - Maintains uniqueness guarantees Fixes performance issue in high-throughput scenarios
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修复卡片ID生成的性能问题。原实现使用 Process.sleep(1) 防止ID冲突，严重影响批量创建卡片时的性能。\n\n## Changes\n- 移除 Process.sleep(1) 瓶颈\n- 使用纳秒时间戳 + 随机组件生成唯一ID\n- 保持唯一性保证，无需阻塞\n\n## Performance\n- Before: ~1 card/ms\n- After: ~1000+ cards/ms