fix: installer checks containers only; the panel reads signed manifests from the registry when it has none; unsigned-updater nodes are labeled from the panel's manifests; sign node release images; release 0.3.0 [CI]

packaging/install/install.ps1

@@ -64,7 +64,7 @@ YOrtO3Vso/QNdSMmepQlx1Q3v+KkN7ro3AY3I6DT2Q2txJu5pS7qzutSQA==
 
     $container = "moshiro-$role"
     $volume = "moshiro-$role-config"
-    docker inspect $container *> $null
+    docker container inspect $container *> $null
     if ($LASTEXITCODE -eq 0) {
         docker start $container | Out-Null
         Write-Host "$container is already installed and running."
@@ -134,7 +134,7 @@ YOrtO3Vso/QNdSMmepQlx1Q3v+KkN7ro3AY3I6DT2Q2txJu5pS7qzutSQA==
 
     # 等注册完成：第一次启动会用上面的令牌注册，成功之后才算装好
     for ($i = 0; $i -lt 30; $i++) {
-        $running = docker inspect -f '{{.State.Running}}' $container 2>$null
+        $running = docker container inspect -f '{{.State.Running}}' $container 2>$null
         $logs = (docker logs $container 2>&1) -join "`n"
         if ($logs -match 'link up') {
             Write-Host "done: $role '$name' is online. It shows up in the panel now."