feat: per-account quota threshold protection Resolves #135 - Adds configurable quota protection with three-tier threshold resolution (per-model → per-account → global) - New global Minimum Quota Level slider in Settings - Per-account threshold settings via Account Settings modal - Draggable per-account threshold markers on model quota bars - Backend: PATCH /api/accounts/:email endpoint, globalQuotaThreshold config - i18n: quota protection keys for all 5 languages
16 KiB
16 KiB