feat(webapp,run-engine): mollifier drainer replay + stale sweep + cancelled-run engine API #6712

Job	Run time
Detect changes	4s
e2e-webapp / 🧪 E2E Tests: Webapp	3m 40s
packages / 🧪 Unit Tests: Packages (1, 1)	11m 54s
typecheck / typecheck	7m 6s
webapp / 🧪 Unit Tests: Webapp (3, 8)	4m 13s
webapp / 🧪 Unit Tests: Webapp (5, 8)	5m 14s
webapp / 🧪 Unit Tests: Webapp (6, 8)	8m 1s
webapp / 🧪 Unit Tests: Webapp (7, 8)	8m 38s
webapp / 🧪 Unit Tests: Webapp (4, 8)	8m 52s
webapp / 🧪 Unit Tests: Webapp (8, 8)	3m 5s
internal / 🧪 Unit Tests: Internal (5, 8)	7m 15s
internal / 🧪 Unit Tests: Internal (4, 8)	5m 48s
internal / 🧪 Unit Tests: Internal (2, 8)	13m 5s
webapp / 🧪 Unit Tests: Webapp (1, 8)	6m 27s
internal / 🧪 Unit Tests: Internal (3, 8)	8m 59s
internal / 🧪 Unit Tests: Internal (1, 8)	6m 43s
internal / 🧪 Unit Tests: Internal (6, 8)	5m 12s
webapp / 🧪 Unit Tests: Webapp (2, 8)	5m 8s
internal / 🧪 Unit Tests: Internal (8, 8)	5m 14s
internal / 🧪 Unit Tests: Internal (7, 8)	6m 12s
e2e	-1s
sdk-compat	-1s
webapp / 📊 Merge Reports	48s
packages / 📊 Merge Reports	22s
internal / 📊 Merge Reports	27s
All PR Checks	3s
	2h 12m 28s

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