v0.12.0 migrate sqlite3 to psql18, updated auth, deploy docs, account and replay updates

internal/server/core/player.go

@@ -19,6 +19,7 @@ type Player struct {
 	Level      int        `json:"level,omitempty"`      // Only for computer
 	SearchTime int        `json:"searchTime,omitempty"` // Only for computer
 	ClaimedBy  string     `json:"claimedBy,omitempty"`  // UserID that claimed this slot
+	Name       string     `json:"name,omitempty"`       // Claimant's username when the claim was stored (history only)
 }
 
 // PlayerConfig for API requests and configuration
@@ -82,4 +83,4 @@ func OppositeColor(c Color) Color {
 		return ColorBlack
 	}
 	return ColorWhite
-}
+}