server: Remove uses of Autohook from buildainfile.cpp

[ASpoonPlaysGames]

Code review:

• The original function is prefixed with o_p so any times where the old AUTOHOOK was calling the original function it should now be calling that instead.
• The hook function is prefixed with h_ so any times where we would be wanting to call the hooked function from other functions should now be calling that instead

Testing:

• Check logs to make sure that all of the changed hooks are being created properly
• Make sure that ns_ai_dumpAINfileFromLoad still works as expected (dumps AIN files on load)

[Alystrasz]

Same remark than #810 (comment), what should I look for in logs when testing this?
The only thing noticeable for now is the old hooks are no longer logged:

[2024-11-06] [23:07:11] [NORTHSTAR] [info] Enabling hook CAI_NetworkBuilder__Build
[2024-11-06] [23:07:11] [NORTHSTAR] [info] Enabling hook LoadAINFile

[RoyalBlue1]

Code looks good and ain file writing still workes as intended when tested