Repository navigation

Carry `capabilities.extensions` on legacy `initialize` handshakes #4596

Job	Run time
checks / pre-commit	1m 1s
checks / test (3.11, locked, windows-latest)	1m 57s
checks / readme-snippets	15s
checks / docs	1m 49s
checks / test (3.13, locked, ubuntu-latest)	1m 30s
checks / test (3.14, locked, windows-latest)	1m 35s
checks / test (3.13, locked, windows-latest)	2m 21s
checks / test (3.15, lowest-direct, windows-latest)	1m 55s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 4s
checks / test (3.15, locked, ubuntu-latest)	1m 24s
checks / test (3.13, lowest-direct, windows-latest)	2m 21s
checks / test (3.14, lowest-direct, windows-latest)	1m 19s
checks / test (3.11, lowest-direct, windows-latest)	2m 11s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 30s
checks / test (3.14, locked, ubuntu-latest)	1m 31s
checks / test (3.15, lowest-direct, ubuntu-latest)	1m 24s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 43s
checks / test (3.11, locked, ubuntu-latest)	1m 37s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 34s
checks / test (3.15, locked, windows-latest)	2m 25s
checks / test (3.12, lowest-direct, windows-latest)	2m 6s
checks / test (3.12, locked, ubuntu-latest)	1m 56s
checks / test (3.12, locked, windows-latest)	2m 35s
all-green	3s
	39m 6s