Add a debug-only structured log line per generateKey, emitted at every
outcome (SKIP, the four REJECTs, FORWARD_HAL, FORGE, PATCH, PASSTHROUGH).
Each line carries the resolving package (via the cached
ConfigurationManager.getPackagesForUid), alias, algorithm, StrongBox
flag, the attestation tag set, and the verdict, so triaging "app X
broke" becomes a single logcat grep instead of decoding parcel dumps.
Gated on SystemLogger.isDebugBuild: release builds return before any
string is built, keeping the path silent and artifact-free. Logs to
logcat only, never to files.
Enginex0
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