Implement SEP-990 Enterprise Managed OAuth #828

Job	Run time
checks / readme-snippets	11s
checks / pre-commit	35s
checks / test (3.10, lowest-direct, ubuntu-latest)	57s
checks / test (3.11, locked, windows-latest)	2m 39s
checks / test (3.11, lowest-direct, ubuntu-latest)	54s
checks / test (3.12, lowest-direct, ubuntu-latest)	58s
checks / test (3.10, locked, ubuntu-latest)	53s
checks / test (3.11, lowest-direct, windows-latest)	2m 47s
checks / test (3.12, lowest-direct, windows-latest)	3m 21s
checks / test (3.10, lowest-direct, windows-latest)	2m 15s
checks / test (3.12, locked, windows-latest)	3m 13s
checks / test (3.10, locked, windows-latest)	2m 17s
checks / test (3.12, locked, ubuntu-latest)	58s
checks / test (3.13, locked, windows-latest)	2m 26s
checks / test (3.11, locked, ubuntu-latest)	52s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 15s
checks / test (3.13, lowest-direct, ubuntu-latest)	56s
checks / test (3.13, lowest-direct, windows-latest)	2m 30s
checks / test (3.14, lowest-direct, windows-latest)	2m 25s
checks / test (3.13, locked, ubuntu-latest)	52s
checks / test (3.14, locked, ubuntu-latest)	2m 19s
checks / test (3.14, locked, windows-latest)	3m 22s
all-green	4s
	38m 59s

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