Phase 0: in-place decoupling before WarpEngine extraction

- FileService/DownloadService: lazy container-path resolution instead of
  class-load-time realpath (boot no longer requires /softwares to exist)
- downloadCount/totalDownloads: single grouped query passed as Blueprinter
  option instead of per-release association counts (fixes N+1)
- admin Images: Member coupling replaced with ImageUsage owner registry
  (precursor of the WarpEngine.config.image_owners hook)
- Image: UPLOAD_PATH constant replaced with call-time upload_path accessor
- proper test environment (config/environments/test.rb, softwares_test DB,
  hosts.clear) — suite previously ran against the development DB
- spec fixes: case-insensitive uniqueness matchers (MySQL ai_ci collation),
  DB-cascade has_many expectations, PlatformLink::SUPPORTED_PLATFORMS
- JSON baselines of /api/software and /api/builds for post-extraction diffing

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

apps/api/config/database.yml

@@ -11,6 +11,10 @@ development:
   <<: *default
   database: <%= ENV.fetch("DB_NAME", "softwares") %>
 
+test:
+  <<: *default
+  database: <%= ENV.fetch("DB_NAME", "softwares") %>_test
+
 production:
   <<: *default
   database: <%= ENV.fetch("DB_NAME", "softwares") %>

apps/api/config/environments/test.rb

@@ -0,0 +1,15 @@
+Rails.application.configure do
+  config.eager_load = false
+  config.consider_all_requests_local = true
+
+  config.cache_classes = true
+  config.action_controller.perform_caching = false
+  config.action_dispatch.show_exceptions = :rescuable
+
+  config.active_support.deprecation = :stderr
+
+  config.log_level = :warn
+
+  # Rack::Test example.org hostját ne blokkolja a host authorization
+  config.hosts.clear
+end

apps/api/config/initializers/image_usage.rb

@@ -0,0 +1,9 @@
+# TTG-specifikus image-használók regisztrációja. to_prepare: reload után is újrafut.
+Rails.application.config.to_prepare do
+  ImageUsage.reset!
+  ImageUsage.register(
+    label: "member",
+    image_ids: -> { Member.where.not(image_id: nil).distinct.pluck(:image_id) },
+    usage_label: ->(image) { "member" if Member.where(image_id: image.id).exists? }
+  )
+end