- Replace complex type system (DEMOTE/TASK) with simple KILL/WARN action model
- Each rule now has: type (monitoring category) + action (KILL=封号 / WARN=告警)
- Type options: KILL/TRAFFIC/LOGIN/HD/RATIO (no DEMOTE/TASK)
- Card left border color by action: red=KILL, orange=WARN
- 12 preset templates with alert-based rules (60-day no-traffic warn, 140-day login warn, HnR warn, ratio warn)
- Remove requirements sub-table and downloadThreshold fields
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