[WIP] [MM-55031] OAuth Outgoing Connection App integration (#25379)

* OAuthOutgoingConnection model

* added store

* make generated

* add missing license headers

* fix receiver name

* i18n

* i18n sorting

* update migrations from master

* make migrations-extract

* update retrylayer tests

* replaced sql query with id pagination

* fixed flaky tests

* missing columns

* missing columns on save/update

* typo

* improved tests

* remove enum from mysql colum

* add password credentials to store

* license changes

* OAuthOutgoingConnectionInterface

* Oauth -> OAuth

* make generated

* merge migrations

* renamed migrations

* model change suggestions

* refactor test functionsn

* migration typo

* refactor store table names

* updated sanitize test

* cleanup merge

* refactor symbol

* list endpoint

* oauthoutgoingconnection -> outgoingoauthconnection

* signature change

* i18n update

* granttype typo

* naming

* api list

* uppercase typo

* i18n

* missing license header

* fixed path in comments

* updated openapi definitions

* sanitize connections

* make generated

* test license and no feature flag

* removed t.fatal

* updated testhelper calls

* yaml schema fixes

* switched interface name

* suggested translation

* missing i18n translation

* address comments

* updated i18n

server/channels/app/channels.go

@@ -60,13 +60,14 @@ type Channels struct {
 	// previously fetched notices
 	cachedNotices model.ProductNotices
 
-	AccountMigration einterfaces.AccountMigrationInterface
-	Compliance       einterfaces.ComplianceInterface
-	DataRetention    einterfaces.DataRetentionInterface
-	MessageExport    einterfaces.MessageExportInterface
-	Saml             einterfaces.SamlInterface
-	Notification     einterfaces.NotificationInterface
-	Ldap             einterfaces.LdapInterface
+	AccountMigration        einterfaces.AccountMigrationInterface
+	Compliance              einterfaces.ComplianceInterface
+	DataRetention           einterfaces.DataRetentionInterface
+	MessageExport           einterfaces.MessageExportInterface
+	Saml                    einterfaces.SamlInterface
+	Notification            einterfaces.NotificationInterface
+	OutgoingOAuthConnection einterfaces.OutgoingOAuthConnectionInterface
+	Ldap                    einterfaces.LdapInterface
 
 	// These are used to prevent concurrent upload requests
 	// for a given upload session which could cause inconsistencies
@@ -176,6 +177,9 @@ func NewChannels(services map[product.ServiceKey]any) (*Channels, error) {
 	if notificationInterface != nil {
 		ch.Notification = notificationInterface(New(ServerConnector(ch)))
 	}
+	if outgoingOauthConnectionInterface != nil {
+		ch.OutgoingOAuthConnection = outgoingOauthConnectionInterface(New(ServerConnector(ch)))
+	}
 	if samlInterfaceNew != nil {
 		ch.Saml = samlInterfaceNew(New(ServerConnector(ch)))
 		if err := ch.Saml.ConfigureSP(request.EmptyContext(s.Log())); err != nil {