ci: add weekly ASan/UBSan sanitizer workflow#242
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Add a GitHub Actions workflow that runs AddressSanitizer (GCC) and UndefinedBehaviorSanitizer (Clang) builds weekly on Sunday at midnight UTC, with manual trigger support. Both jobs build in Release mode with ccache and run soltest with --no-smt and --no-semantic-tests. ASan uses reduced parallelism (-j 2) to avoid OOM and sets ASAN_OPTIONS/LSAN_OPTIONS with the existing .circleci/cln-asan.supp suppression file.
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Summary
.github/workflows/sanitizers.ymlwith two parallel jobs: ASan (GCC) and UBSan (Clang)workflow_dispatchtrigger-DSANITIZE=addressusing GCC at-j 2(reduced parallelism to avoid OOM), setsASAN_OPTIONSandLSAN_OPTIONSwith the existing.circleci/cln-asan.suppsuppression file-DSANITIZE=undefinedusing Clang at full parallelismsoltest.sh --no-smt(which already passes--no-semantic-tests)Test plan
workflow_dispatchto verify both jobs complete