Restore pre-2.0 logistic slots and bound imported stats

Logistic slots saved before 2.0 are keyed by index strings, which
json_to_table keeps as strings, so the migration branch never ran and
the 2.0 branch failed on the missing sections. Detect the old format by
the missing sections and convert the keys to numbers.

The import schema now uses the minimums Factorio enforces for character
stats, checks the filter value type and the quick bar comparator, and
allows filters without quality or comparator.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

plugins/player_sync/module/serialize.lua

@@ -346,13 +346,13 @@ function serialize.deserialize_personal_logistic_slots(player, serialized)
 			logistic_point.remove_section(i)
 		end
 
-		-- If this is an array instead of a table, migrate to v2 format
+		-- Data from before 2.0 maps slot indices to requests, migrate it to a section
 		if next(serialized) == nil then
 			return
-		elseif serialized[1] ~= nil then
+		elseif serialized.sections == nil then
 			local section = logistic_point.add_section()
 			for i, slot in pairs(serialized) do
-				section.set_slot(i, {
+				section.set_slot(tonumber(i), {
 					value = {
 						name = slot.name,
 						quality = "normal",