feat(webapp,run-engine): mollifier drainer replay + stale sweep + cancelled-run engine API #6653

Job	Run time
Detect changes	7s
e2e-webapp / 🧪 E2E Tests: Webapp	3m 32s
packages / 🧪 Unit Tests: Packages (1, 1)	11m 41s
internal / 🧪 Unit Tests: Internal (4, 8)	5m 41s
internal / 🧪 Unit Tests: Internal (1, 8)	7m 35s
internal / 🧪 Unit Tests: Internal (7, 8)	6m 15s
internal / 🧪 Unit Tests: Internal (2, 8)	13m 23s
internal / 🧪 Unit Tests: Internal (5, 8)	6m 57s
internal / 🧪 Unit Tests: Internal (6, 8)	5m 42s
webapp / 🧪 Unit Tests: Webapp (6, 8)	7m 13s
webapp / 🧪 Unit Tests: Webapp (2, 8)	5m 18s
webapp / 🧪 Unit Tests: Webapp (4, 8)	7m 11s
webapp / 🧪 Unit Tests: Webapp (7, 8)	7m 13s
webapp / 🧪 Unit Tests: Webapp (3, 8)	3m 40s
internal / 🧪 Unit Tests: Internal (3, 8)	9m 15s
e2e	0s
webapp / 🧪 Unit Tests: Webapp (5, 8)	5m 1s
internal / 🧪 Unit Tests: Internal (8, 8)	5m 20s
webapp / 🧪 Unit Tests: Webapp (1, 8)	6m 56s
typecheck / typecheck	7m 18s
webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 47s
sdk-compat	0s
webapp / 📊 Merge Reports	36s
packages / 📊 Merge Reports	23s
internal / 📊 Merge Reports	34s
All PR Checks	4s
	2h 9m 42s

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