Fix duplicate imports and whitespace in register.go and proxy.go

Deduplicate algeneva and water imports that were added twice in
register.go (merge conflict artifact). Fix spaces-to-tab indentation
for TypeSamizdat in proxy.go.

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

Author: myleshorton

constant/proxy.go

@@ -4,7 +4,7 @@ const (
 	TypeAmnezia   = "amnezia"
 	TypeALGeneva  = "algeneva"
 	TypeOutline   = "outline"
-  TypeSamizdat = "samizdat"
+	TypeSamizdat  = "samizdat"
 	TypeWATER     = "water"
 	TypeUnbounded = "unbounded"
 )

protocol/register.go

@@ -12,12 +12,9 @@ import (
 	"github.com/getlantern/lantern-box/protocol/algeneva"
 	"github.com/getlantern/lantern-box/protocol/amnezia"
 	"github.com/getlantern/lantern-box/protocol/group"
-	"github.com/getlantern/lantern-box/protocol/unbounded"
-	"github.com/getlantern/lantern-box/protocol/water"
-
-	"github.com/getlantern/lantern-box/protocol/algeneva"
 	"github.com/getlantern/lantern-box/protocol/outline"
 	"github.com/getlantern/lantern-box/protocol/samizdat"
+	"github.com/getlantern/lantern-box/protocol/unbounded"
 	"github.com/getlantern/lantern-box/protocol/water"
 )