fix(v3): redesign of batch completion to prevent heavy row-level contention on the BatchTaskRun #4205

Job	Run time
typecheck / typecheck	5m 42s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	4m 57s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	3m 55s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	1m 41s
units / packages / 🧪 Unit Tests: Packages (1, 1)	8m 8s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	1m 49s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	6m 0s
units / internal / 🧪 Unit Tests: Internal (4, 8)	5m 3s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	7m 20s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	4m 22s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 47s
units / internal / 🧪 Unit Tests: Internal (1, 8)	6m 12s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	3m 39s
units / internal / 🧪 Unit Tests: Internal (2, 8)	9m 54s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	5m 55s
units / internal / 🧪 Unit Tests: Internal (3, 8)	6m 0s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	3m 50s
units / internal / 🧪 Unit Tests: Internal (6, 8)	4m 47s
units / internal / 🧪 Unit Tests: Internal (8, 8)	2m 51s
units / internal / 🧪 Unit Tests: Internal (5, 8)	3m 50s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	6m 30s
units / internal / 🧪 Unit Tests: Internal (7, 8)	4m 53s
units / webapp / 📊 Merge Reports	51s
units / packages / 📊 Merge Reports	16s
units / internal / 📊 Merge Reports	23s
	1h 51m 35s

Provide feedback