feat: add .cfbg debug command for inspecting player CFBG state

[Nyeriah]

Summary

• Adds .cfbg debug [$playername], a console-accessible command (GM 1+) that dumps a player's CFBG state.
• Defaults to target/self in-game; console requires a player name.
• Output: enable flags (system/WG), Faked/PlayingNative/ForgetBGPlayers/ForgetInListPlayers, class/gender, native vs current race+team+display IDs, the SETTING_CFBG_RACE preference, and the stored FakePlayer record (fake + real race/morph/team) when the player is currently faked.
• Promotes CFBG::GetFakePlayer from private to public so the command can read the fake record.
• Registers cfbg debug in cfbg_commands.sql (security 1, help text), and includes it in the matching DELETE for idempotency.

Test plan

• Build with the module enabled.
• Apply cfbg_commands.sql against acore_world.
• In-game as GM ≥ 1: .cfbg debug (self), .cfbg debug with another player targeted, .cfbg debug PlayerName.
• From console: cfbg debug PlayerName (online) and confirm offline name returns Player not found.
• Verify the Fake record block appears only while inside a BG / WG war (i.e. while the player is in _fakePlayerStore).
• Confirm SEC_PLAYER cannot invoke .cfbg debug.

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