anthropic[minor]: Implement actual anthropic tool call streaming #14428

Job	Run time
Check linting	5m 0s
test-exports / exports-esbuild	5m 53s
test-exports / exports-cjs	4m 52s
test-exports / exports-esm	4m 39s
test-exports / exports-cf	4m 51s
test-exports / exports-vercel	6m 5s
test-exports / exports-vite	4m 18s
test-exports / exports-tsc	4m 4s
	39m 42s

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