Resync research after a new controller session

While the host has no controller session, events between the instance
and the controller are dropped in both directions, and research_sync
only synced technologies on instance start. A technology finished during
the outage stayed unresearched on the controller and on every other
instance until the instance restarted.

On a new session the instance now runs the same technology sync as on
start, before taking the cluster queue. Contributions made while the
controller is unreachable are summed per technology and sent on connect
or resume, since progress from several instances can't be rebuilt from a
state sync that keeps the highest progress. A finish made while the
connection was dropped triggers the sync on resume too.

sync_technologies now runs while the game is running, so it skips
writing progress to a technology that finished after the dump.

Fixes #1123

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

plugins/research_sync/module/sync.lua

@@ -332,7 +332,8 @@ function research_sync.sync_technologies(data)
 				end
 				tech.researched = true
 				progress = nil
-			elseif tech_data[progressIndex] then
+			-- may have finished here since the dump this sync is answering
+			elseif tech_data[progressIndex] and not tech.researched then
 				send_contribution(tech)
 				progress = tech_data[progressIndex]
 				set_technology_progress(tech, progress)