feat: Portal, Email Inbound, Discuss + module improvements

- Portal: /my/* routes, signup, password reset, portal user support
- Email Inbound: IMAP polling (go-imap/v2), thread matching
- Discuss: mail.channel, long-polling bus, DM, unread count
- Cron: ir.cron runner (goroutine scheduler)
- Bank Import, CSV/Excel Import
- Automation (ir.actions.server)
- Fetchmail service
- HR Payroll model
- Various fixes across account, sale, stock, purchase, crm, hr, project

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

addons/project/models/init.go

@@ -6,6 +6,8 @@ func Init() {
 	initProjectMilestone()
 	initProjectProject()
 	initProjectTask()
+	initProjectTaskChecklist()
+	initProjectSharing()
 	initProjectUpdate()
 	initProjectTimesheetExtension()
 	initTimesheetReport()
@@ -13,5 +15,6 @@ func Init() {
 	initProjectTaskExtension()
 	initProjectMilestoneExtension()
 	initProjectTaskRecurrence()
+	initProjectTaskRecurrenceExtension()
 	initProjectSharingWizard()
 }