feat(watcher): sync SVN working copies automatically #853

Job	Run time
changes	4s
lint / lint	7m 38s
security / license-gate	3m 3s
security / codeql-gate	41m 13s
security / security-static	47s
pr-smoke (ubuntu-latest)	4m 10s
pr-smoke (windows-latest)	7m 36s
pr-smoke (macos-14)	4m 12s
test / test-windows-guards	7m 10s
test / setup-matrix	3s
test / test-tsan	12m 53s
test / test-windows (windows-latest, CLANG64, x86_64)	41m 29s
test / test-unix (ubuntu-24.04-arm, gcc, g++)	1h 1m 8s
test / test-unix (ubuntu-latest, gcc, g++)	26m 11s
test / test-unix (macos-15-intel, cc, c++)	51m 3s
test / test-unix (macos-14, cc, c++)	21m 27s
ci-ok	3s
	4h 50m 10s

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