ZhenYi 882e86dc33 refactor(email): switch to async channel-based email queue with retry ... Converts AppEmail from blocking sync sends to a background worker via mpsc channel, adds SMTP pool tuning (min_idle 5, max_size 100), and 3-retry backoff on send failures.		2026-04-19 00:10:38 +08:00
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Cargo.toml	init	2026-04-15 09:08:09 +08:00
lib.rs	refactor(email): switch to async channel-based email queue with retry	2026-04-19 00:10:38 +08:00