v0.5.2

Added

• Accept /spark profiler upload (and /spark sampler upload) as a
  compatibility alias for /spark profiler stop, matching upstream spark.
  --upload and --stop legacy flag forms are also accepted.

Fixed

• Harden crash recovery against corrupted, truncated, or rotation-damaged
  journals. A recovery journal missing its early segments (head-truncated by
  segment rotation), referencing module IDs whose ModuleDef records were
  deleted, or carrying a CLEAN_END marker no longer causes plugin enable to
  fail. Rolling journals now preserve session metadata in a crash-consistent
  snapshot sidecar before pruning old segments, so rotated profiles remain
  recoverable. Allocation profiles record an explicit module-0 sentinel so
  samples referencing the catch-all module resolve correctly during replay.
  Clean-end sessions skip replay entirely; incomplete or malformed journals are
  safely discarded (or quarantined on unexpected exceptions) and the server
  continues starting up normally. Previously this could abort the plugin on
  Windows (invalid vector subscript) or crash the entire BDS process on Linux
  via an exception crossing the plugin DSO boundary.

Full Changelog: v0.5.1...v0.5.2