Sheldon Spawn Controller

FIXES
- The optional WebSocket live-control link now connects. In v2 the connection
  was rejected by the game's network audit before it opened; the create and
  connect calls are corrected and the link works end to end.
- Mode=Scan is now sweep-only, as documented: on-spawn removal is disabled and
  the background sweep does all enforcement. Mode=Both remains the default and
  keeps instant on-spawn removal.

NEW
- New ScanGridWrap setting: the sweep grid is now configurable (default 15,
  matching the previous behavior). Raise it on large maps so the sweep covers
  the whole map edge to edge.
- Verbose logging works: with bVerboseLog=True the server log records a line
  at startup and one line for every removal, from both mechanisms
  ("SSC buff cull <Class>", "SSC sweep cull <Class>").
- Removal counters now cover both mechanisms: sweep removals are counted per
  class alongside on-spawn removals, so status queries over the live link
  report complete numbers.

NOTES
- INI format unchanged; existing [SheldonSpawnController] sections work as-is.
- The BridgeURL value must be quoted (BridgeURL="ws://host:port"). The game
  truncates an unquoted value at the double slash.
- After changing the blocklist, restart or run cheat DestroyWildDinos so
  already-spawned creatures are re-evaluated.