Aggiunge registry nodi stream e provisioning Hetzner/lab per lo scale-out.

Prepara l'architettura multi-nodo (MediaMTX+ffmpeg) con assignment URL per sessione, admin di provision/drain e provider Cloud/DNS astratti verso mltv-stream.net.

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

backend/db/migrate/20260809120000_create_stream_nodes.rb

@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+class CreateStreamNodes < ActiveRecord::Migration[7.2]
+  def change
+    create_table :stream_nodes, id: :uuid, default: -> { "gen_random_uuid()" } do |t|
+      t.string :slug, null: false
+      t.string :hostname, null: false
+      t.string :role, null: false, default: "home"
+      t.string :status, null: false, default: "ready"
+      t.string :rtmp_base_url, null: false
+      t.string :hls_base_url, null: false
+      t.string :api_base_url, null: false
+      t.string :internal_rtmp_url
+      t.string :internal_hls_url
+      t.integer :max_publishers, null: false, default: 6
+      t.integer :max_relays, null: false, default: 6
+      t.string :provider, null: false, default: "local"
+      t.string :provider_instance_id
+      t.datetime :last_health_at
+      t.jsonb :metadata, null: false, default: {}
+      t.timestamps
+    end
+
+    add_index :stream_nodes, :slug, unique: true
+    add_index :stream_nodes, :status
+    add_index :stream_nodes, :role
+
+    add_reference :stream_sessions, :stream_node, type: :uuid, foreign_key: true, null: true, index: true
+  end
+end

backend/db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.2].define(version: 2026_06_12_120000) do
+ActiveRecord::Schema[7.2].define(version: 2026_08_09_120000) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pgcrypto"
   enable_extension "plpgsql"
@@ -255,6 +255,29 @@ ActiveRecord::Schema[7.2].define(version: 2026_06_12_120000) do
     t.index ["stream_session_id"], name: "index_stream_events_on_stream_session_id"
   end
 
+  create_table "stream_nodes", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
+    t.string "slug", null: false
+    t.string "hostname", null: false
+    t.string "role", default: "home", null: false
+    t.string "status", default: "ready", null: false
+    t.string "rtmp_base_url", null: false
+    t.string "hls_base_url", null: false
+    t.string "api_base_url", null: false
+    t.string "internal_rtmp_url"
+    t.string "internal_hls_url"
+    t.integer "max_publishers", default: 6, null: false
+    t.integer "max_relays", default: 6, null: false
+    t.string "provider", default: "local", null: false
+    t.string "provider_instance_id"
+    t.datetime "last_health_at"
+    t.jsonb "metadata", default: {}, null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["role"], name: "index_stream_nodes_on_role"
+    t.index ["slug"], name: "index_stream_nodes_on_slug", unique: true
+    t.index ["status"], name: "index_stream_nodes_on_status"
+  end
+
   create_table "stream_sessions", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
     t.uuid "match_id", null: false
     t.uuid "user_id", null: false
@@ -280,10 +303,12 @@ ActiveRecord::Schema[7.2].define(version: 2026_06_12_120000) do
     t.datetime "updated_at", null: false
     t.string "regia_token_digest"
     t.datetime "regia_token_expires_at"
+    t.uuid "stream_node_id"
     t.index ["match_id"], name: "index_stream_sessions_on_match_id"
     t.index ["publish_token"], name: "index_stream_sessions_on_publish_token", unique: true
     t.index ["regia_token_digest"], name: "index_stream_sessions_on_regia_token_digest", unique: true
     t.index ["status"], name: "index_stream_sessions_on_status"
+    t.index ["stream_node_id"], name: "index_stream_sessions_on_stream_node_id"
     t.index ["user_id"], name: "index_stream_sessions_on_user_id"
   end
 
@@ -411,6 +436,7 @@ ActiveRecord::Schema[7.2].define(version: 2026_06_12_120000) do
   add_foreign_key "score_states", "stream_sessions"
   add_foreign_key "stream_events", "stream_sessions"
   add_foreign_key "stream_sessions", "matches"
+  add_foreign_key "stream_sessions", "stream_nodes"
   add_foreign_key "stream_sessions", "users"
   add_foreign_key "subscriptions", "admin_accounts", column: "admin_comped_by_id"
   add_foreign_key "subscriptions", "clubs"

backend/db/seeds.rb

@@ -43,3 +43,6 @@ end
 
 puts "Seed OK: coach@matchlivetv.test / Password123"
 puts "Club: #{club.name}, Team: #{team.name}, Match: #{match.opponent_name}"
+
+home = Streams::NodeRegistry.ensure_home_from_env!
+puts "Stream node home: #{home.slug} rtmp=#{home.rtmp_base_url}"