Fix two potential SIGSEGV paths during early startup

- sentryintegration.cpp: sentry_options_new() can return nullptr on OOM;
  all subsequent sentry_options_set_* calls would immediately SIGSEGV.
  Guard with an early return that sets m_SentryErrorCode = -1 so Close()
  correctly skips sentry_close().

- zenserver.cpp: ZenServerState::Register() returns nullptr if the shared
  memory entry table is full. The subsequent Entry->SignalHasInstanceInfo(),
  Entry->SignalNoNetwork(), Entry->AddSponsorProcess(), and DoRun(Entry)
  calls would all SIGSEGV. Throw a descriptive runtime_error instead,
  which is caught by the existing catch handlers in Run().

0 files changed, 0 insertions, 0 deletions