feat(cli): introduce task system with vix.json support and fmt command #67

Job	Run time
Configuration Coverage	1m 6s
Static Analysis	1m 5s
Build (gcc)	1m 2s
Runtime Smoke Checks	59s
Valgrind Checks	1m 13s
Build (clang)	1m 3s
Standalone Package Export Check	1m 0s
CLI Strict CI Summary	0s
	7m 28s

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