[kgofron]

Summary

• Extend the EPICS Base 7 CI matrix with separate AddressSanitizer and UndefinedBehaviorSanitizer debug jobs.
• Instrument ADTimePix3 and its deterministic test executable while keeping Base, asyn, and ADCore non-instrumented.
• Stop sanitizer jobs immediately on detected errors.
• Disable ASan leak detection because EPICS process-lifetime allocations are outside this module's ownership.
• Retain separate TAP artifacts for the default, ASan, and UBSan jobs.
• Document the sanitizer coverage in the contributor and R1-8-0 release notes.

No PV names, NDArray addresses, IOC databases, Phoebus screens, or runtime behavior are changed.

Validation

Local validation passed:

• normal full IOC build;
• 346/346 default tests;
• 346/346 AddressSanitizer tests;
• 346/346 UndefinedBehaviorSanitizer tests;
• 11 implemented coordinate-map cases;
• 47/47 Phoebus BOB files parsed as XML;
• REUSE validation for 377/377 files;
• workflow YAML and matrix validation;
• git diff --check.

Generated local binaries were restored to a normal non-sanitized build after validation.