fix(webapp): return 404 instead of 500 for missing env/project/schedu… #3113

Job	Run time
typecheck / typecheck	7m 35s
units / e2e-webapp / 🧪 E2E Tests: Webapp	3m 36s
units / internal / 🧪 Unit Tests: Internal (1, 8)	6m 32s
units / internal / 🧪 Unit Tests: Internal (2, 8)	13m 19s
units / internal / 🧪 Unit Tests: Internal (3, 8)	9m 10s
units / internal / 🧪 Unit Tests: Internal (7, 8)	6m 47s
units / internal / 🧪 Unit Tests: Internal (4, 8)	6m 44s
units / internal / 🧪 Unit Tests: Internal (8, 8)	3m 2s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	6m 29s
units / packages / 🧪 Unit Tests: Packages (1, 1)	10m 30s
units / internal / 🧪 Unit Tests: Internal (5, 8)	6m 8s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	7m 19s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	7m 56s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	6m 8s
units / internal / 🧪 Unit Tests: Internal (6, 8)	6m 31s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	6m 22s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	3m 20s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	3m 37s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	8m 52s
publish-webapp / publish	5m 35s
publish-worker / build (kubernetes-provider)	54s
publish-worker / build (docker-provider)	1m 14s
publish-worker-v4 / build (supervisor)	2m 27s
publish-worker / build (coordinator)	1m 46s
units / webapp / 📊 Merge Reports	53s
units / packages / 📊 Merge Reports	27s
units / internal / 📊 Merge Reports	33s
	2h 23m 46s

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