🐛 [Abyssea] traverser stone epoch calculation error

[lefneer311]

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OS / platform the server is running (if known)

Windows 11

Branch affected by issue

base

Steps to reproduce

Create a fresh database, account, and character
Complete the introduction quest for Abyssea - THE_TRUTH_BECKONS
Ask Joachim for a traverser stone and receive a wild, epoch = 0 causing, formula breaking result
Check database char_unlocks > traverser_start for your character and notice value is 0

Expected behavior

The database should have received an update in the form of a timestamp to use for calculating future stone disbursements like this:

[lefneer311]

This might be an issue with char_unlocks table traverser_start column's initial formatting in sql.

I ran this to modify the column from 0 to null, then tested with a fresh character and it succeeded:

ALTER TABLE char_unlocks
MODIFY traverser_start TIMESTAMP NULL DEFAULT NULL;

Each new character now has "null" instead of 0 in that column, which seems to update properly via setTraverserEpoch.