[WIP] Add support for virtual host functionality (#2212)

* Initial plan

* Fix vhost security and code quality issues from review feedback

Co-authored-by: PIKACHUIM <40362270+PIKACHUIM@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: PIKACHUIM <40362270+PIKACHUIM@users.noreply.github.com>

Author: Copilot

go.mod

@@ -89,8 +89,8 @@ require (
 )
 
 require (
-	cloud.google.com/go/compute/metadata v0.9.0 // indirect
 	github.com/Azure/azure-sdk-for-go/sdk/internal v1.11.1 // indirect
+	github.com/BurntSushi/toml v1.6.0 // indirect
 	github.com/ProtonMail/bcrypt v0.0.0-20211005172633-e235017c1baf // indirect
 	github.com/ProtonMail/gluon v0.17.1-0.20230724134000-308be39be96e // indirect
 	github.com/ProtonMail/go-mime v0.0.0-20230322103455-7d82a3887f2f // indirect