all: rename NetworkLock functions/types to TailnetLock

To avoid breaking downstream code, add deprecated aliases for all the
old names.

Updates tailscale/corp#37904

Change-Id: I86d0b0d7da371946440b181c665448f91c3ef8d2
Signed-off-by: Alex Chan <alexc@tailscale.com>

feature/tailnetlock/tailnetlock.go

@@ -41,8 +41,8 @@ func handleC2NDebugTKALog(b *ipnlocal.LocalBackend, w http.ResponseWriter, r *ht
 		}
 	}
 
-	updates, err := b.NetworkLockLog(limit)
-	if ipnlocal.IsNetworkLockNotActive(err) {
+	updates, err := b.TailnetLockLog(limit)
+	if ipnlocal.IsTailnetLockNotActive(err) {
 		http.Error(w, "tailnet lock not active", http.StatusBadRequest)
 		return
 	} else if err != nil {
@@ -50,5 +50,5 @@ func handleC2NDebugTKALog(b *ipnlocal.LocalBackend, w http.ResponseWriter, r *ht
 		return
 	}
 	w.Header().Set("Content-Type", "application/json")
-	jsonoutput.PrintNetworkLockLogJSONV1(w, updates)
+	jsonoutput.PrintTailnetLockLogJSONV1(w, updates)
 }

feature/tailnetlock/tailnetlock_test.go

@@ -57,7 +57,7 @@ func TestHandleC2NDebugTKA(t *testing.T) {
 		return sb.String()
 	}
 
-	// matches [jsonoutput.PrintNetworkLockLogJSONV1]
+	// matches [jsonoutput.PrintTailnetLockLogJSONV1]
 	type response struct {
 		SchemaVersion string
 		Messages      []any