[UX] Make `dstack project` and `dstack project set-default` interactive for default project selection #6233

Job	Run time
build-docs / build-docs	1m 17s
compute-version	3s
build-artifacts / gateway-build	15s
build-artifacts / code-lint	39s
build-artifacts / frontend-build	8s
build-artifacts / runner-test (ubuntu-latest)	40s
build-artifacts / runner-test (macos-latest)	1m 5s
build-artifacts / python-build	18s
build-artifacts / generate-json-schema	18s
build-artifacts / python-test (macos-latest, 3.11)	2m 59s
build-artifacts / python-test (ubuntu-latest, 3.10)	5m 6s
build-artifacts / python-test (macos-latest, 3.12)	4m 34s
build-artifacts / python-test (ubuntu-latest, 3.13)	4m 59s
build-artifacts / python-test (macos-latest, 3.13)	2m 43s
build-artifacts / python-test (ubuntu-latest, 3.9)	5m 8s
build-artifacts / python-test (windows-latest, 3.11)	2m 15s
build-artifacts / python-test (macos-latest, 3.10)	3m 31s
build-artifacts / python-test (ubuntu-latest, 3.12)	4m 23s
build-artifacts / python-test (ubuntu-latest, 3.11)	4m 48s
build-artifacts / python-test (windows-latest, 3.9)	2m 50s
build-artifacts / python-test (windows-latest, 3.10)	2m 20s
build-artifacts / python-test (windows-latest, 3.12)	2m 8s
build-artifacts / python-test (windows-latest, 3.13)	2m 13s
build-artifacts / python-test (macos-latest, 3.9)	2m 57s
build-artifacts / runner-compile (ubuntu-24.04-arm, linux, arm64)	33s
build-artifacts / runner-compile (ubuntu-24.04, linux, amd64)	27s
upload-pre-pypi-artifacts / upload-pre-pypi-artifacts	22s
upload-post-pypi-artifacts / upload-post-pypi-artifacts	15s
	59m 14s

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