fix(react-hooks): prevent onComplete from firing prematurely when stream disconnects #4203

Job	Run time
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	1m 44s
typecheck / typecheck	6m 9s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	1m 46s
units / packages / 🧪 Unit Tests: Packages (1, 1)	8m 19s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	3m 44s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	3m 23s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	6m 47s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	7m 26s
units / internal / 🧪 Unit Tests: Internal (1, 8)	6m 24s
units / internal / 🧪 Unit Tests: Internal (6, 8)	4m 45s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	3m 54s
units / internal / 🧪 Unit Tests: Internal (5, 8)	3m 53s
units / internal / 🧪 Unit Tests: Internal (4, 8)	5m 26s
units / internal / 🧪 Unit Tests: Internal (8, 8)	2m 49s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	4m 25s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 32s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	6m 44s
units / internal / 🧪 Unit Tests: Internal (7, 8)	4m 57s
units / internal / 🧪 Unit Tests: Internal (2, 8)	9m 48s
units / internal / 🧪 Unit Tests: Internal (3, 8)	5m 53s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	5m 50s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	5m 43s
units / webapp / 📊 Merge Reports	38s
units / packages / 📊 Merge Reports	20s
units / internal / 📊 Merge Reports	20s
	1h 53m 39s

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