feat(database,webapp): add LlmModel pricing_unit column and admin selector #6824

Job	Run time
Detect changes	4s
webapp / 🧪 Unit Tests: Webapp (6, 8)	3m 59s
typecheck / typecheck	6m 30s
internal / 🧪 Unit Tests: Internal (1, 8)	6m 30s
e2e-webapp / 🧪 E2E Tests: Webapp	3m 7s
webapp / 🧪 Unit Tests: Webapp (1, 8)	6m 38s
webapp / 🧪 Unit Tests: Webapp (8, 8)	6m 52s
webapp / 🧪 Unit Tests: Webapp (2, 8)	4m 26s
internal / 🧪 Unit Tests: Internal (5, 8)	5m 32s
webapp / 🧪 Unit Tests: Webapp (4, 8)	7m 53s
internal / 🧪 Unit Tests: Internal (2, 8)	12m 56s
internal / 🧪 Unit Tests: Internal (4, 8)	5m 52s
webapp / 🧪 Unit Tests: Webapp (3, 8)	3m 44s
internal / 🧪 Unit Tests: Internal (8, 8)	6m 13s
internal / 🧪 Unit Tests: Internal (6, 8)	5m 11s
internal / 🧪 Unit Tests: Internal (3, 8)	8m 46s
webapp / 🧪 Unit Tests: Webapp (7, 8)	8m 14s
internal / 🧪 Unit Tests: Internal (7, 8)	5m 40s
webapp / 🧪 Unit Tests: Webapp (5, 8)	5m 26s
e2e	-1s
sdk-compat	-1s
packages	-1s
webapp / 📊 Merge Reports	54s
internal / 📊 Merge Reports	26s
All PR Checks	4s
	1h 54m 54s

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