Chat history prototype (#17206)

* Chat history prototype

* changes

* static defines

* bunch of fixes (#17207)

* bunch of fixes

* multi round export

* allow to export 1 specific round

* prepare for databse load

* Update code/__defines/vchatlog.dm

---------

Co-authored-by: Selis <12716288+ItsSelis@users.noreply.github.com>

* fixed typo

* beginning of loading

* frontend

* data/chatlogs

* loading lines

* lint fix

* more fixes

* new define

* less spam

* timeout the loading (#17214)

* more frontend fixes

* ckey

* some comments and reverts (#17220)

* some comments and reverts

* we should fix that too

* .

* api

* cleanup (#17232)

* Button.Confirm

* API

* Up to date binaries

* Default set for chatlog backend

* Removed unused verbs

* fix that

* Update misc.dm

* .

* .

---------

Co-authored-by: Kashargul <144968721+Kashargul@users.noreply.github.com>

code/modules/client/client defines.dm

@@ -178,3 +178,6 @@
 
 	/// If this client has been fully initialized or not
 	var/fully_created = FALSE
+
+	/// Token used for the external chatlog api. Only valid for the current round.
+	var/chatlog_token

code/modules/client/client procs.dm

@@ -244,6 +244,9 @@
 	GLOB.clients += src
 	GLOB.directory[ckey] = src
 
+	if (CONFIG_GET(flag/chatlog_database_backend))
+		chatlog_token = vchatlog_generate_token(ckey)
+
 	// Instantiate stat panel
 	stat_panel = new(src, "statbrowser")
 	stat_panel.subscribe(src, .proc/on_stat_panel_message)