llvm

41960348 - feat(ci): Add comprehensive UR test summary with collapsible sections

feat(ci): Add comprehensive UR test summary with collapsible sections - Parse LIT test output in single-pass awk for efficiency (O(n) vs O(n²)) - Generate GitHub step summary with collapsible test lists - Show TIMEOUT/FAIL/XPASS tests expanded by default for visibility - Collapse PASS/XFAIL/UNSUPPORTED/SKIPPED for long test lists - Simplify LIT_OPTS using `-a` flag for all test statuses - Add security hardening: printf instead of echo, input validation - Add error handling and graceful degradation for missing logs - Memory optimization: use arrays instead of string concatenation Tested with all LIT statuses: PASS, FAIL, XFAIL, XPASS, TIMEOUT, UNSUPPORTED, UNRESOLVED, SKIPPED