Corregge il provisioning Hetzner: Faraday, cloud-init e default cpx12.

Sistemati path API /v1, AppArmor/auth MediaMTX sul nodo e defaults nbg1 così lo smoke Cloud è ripetibile.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/spec/services/streams/cloud_providers/hetzner_spec.rb

@@ -5,7 +5,7 @@ require "rails_helper"
 RSpec.describe Streams::CloudProviders::Hetzner do
   let(:stubs) { Faraday::Adapter::Test::Stubs.new }
   let(:conn) do
-    Faraday.new(url: "https://api.hetzner.cloud/v1") do |f|
+    Faraday.new(url: Streams::CloudProviders::Hetzner::API) do |f|
       f.request :json
       f.response :json
       f.adapter :test, stubs
@@ -25,15 +25,15 @@ RSpec.describe Streams::CloudProviders::Hetzner do
 
   it "creates a server and waits until running" do
     with_env(
-      "HCLOUD_LOCATION" => "fsn1",
-      "HCLOUD_SERVER_TYPE" => "cpx21",
+      "HCLOUD_LOCATION" => "nbg1",
+      "HCLOUD_SERVER_TYPE" => "cpx12",
       "HCLOUD_IMAGE" => "debian-12",
-      "HCLOUD_SSH_KEY" => "matchlivetv-stream"
+      "HCLOUD_SSH_KEY" => "matchlivetv-stream-hetzner"
     ) do
-      stubs.post("/servers") do |env|
+      stubs.post("https://api.hetzner.cloud/v1/servers") do |env|
         body = JSON.parse(env.body)
         expect(body["name"]).to eq("mltv-stream-ingest-01")
-        expect(body["location"]).to eq("fsn1")
+        expect(body["location"]).to eq("nbg1")
         [
           201,
           { "Content-Type" => "application/json" },
@@ -49,10 +49,10 @@ RSpec.describe Streams::CloudProviders::Hetzner do
           }
         ]
       end
-      stubs.get("/actions/7") do
+      stubs.get("https://api.hetzner.cloud/v1/actions/7") do
         [200, { "Content-Type" => "application/json" }, { "action" => { "id" => 7, "status" => "success" } }]
       end
-      stubs.get("/servers/42") do
+      stubs.get("https://api.hetzner.cloud/v1/servers/42") do
         [
           200,
           { "Content-Type" => "application/json" },
@@ -76,7 +76,7 @@ RSpec.describe Streams::CloudProviders::Hetzner do
   end
 
   it "destroys a server" do
-    stubs.delete("/servers/42") { [204, {}, ""] }
+    stubs.delete("https://api.hetzner.cloud/v1/servers/42") { [204, {}, ""] }
     expect(provider.destroy_node("42")).to eq(true)
   end
 end