Phase 1: warp_engine gem skeleton (path gem, mounted engine)

- libs/ruby/warp_engine: gemspec, WarpEngine::Engine (isolate_namespace with
  empty table_name_prefix), WarpEngine.configure surface (container paths,
  update_secret, image_owners), empty engine routes
- host Gemfile: path gem; host routes: mount WarpEngine::Engine => "/" as
  the last entry so host routes always win
- docker: api build context moved to repo root so libs/ is visible at
  bundle-install time; ./libs:/libs runtime mount; root .dockerignore to keep
  data/ and node_modules out of the build context

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

apps/api/Dockerfile.development

@@ -14,10 +14,13 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 
 WORKDIR /app
 
-COPY Gemfile ./
+# A path gemek /libs alá kerülnek, ugyanoda, ahova a compose mountolja őket,
+# így a Gemfile "../../libs/..." relatív útvonala build- és futásidőben is stimmel.
+COPY libs /libs
+COPY apps/api/Gemfile ./
 RUN bundle install
 
-COPY . .
+COPY apps/api .
 
 EXPOSE 3000
 

apps/api/Gemfile

@@ -1,6 +1,10 @@
 source "https://rubygems.org"
 
 gem "rails", "~> 8.0"
+
+# Katalógus-engine. A relatív path hoston (apps/api -> repo-gyökér/libs) és a
+# konténerben (/app -> /libs mount) is ugyanoda oldódik fel.
+gem "warp_engine", path: "../../libs/ruby/warp_engine"
 gem "mysql2", "~> 0.5"
 gem "puma", ">= 5.0"
 gem "rubyzip", "~> 2.3"

apps/api/Gemfile.lock

@@ -1,3 +1,9 @@
+PATH
+  remote: ../libs/ruby/warp_engine
+  specs:
+    warp_engine (0.1.0)
+      rails (>= 8.0)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -380,6 +386,7 @@ DEPENDENCIES
   sassc-rails
   shoulda-matchers (~> 6.0)
   sprockets-rails
+  warp_engine!
 
 BUNDLED WITH
    2.5.22

apps/api/config/routes.rb

@@ -20,4 +20,7 @@ Rails.application.routes.draw do
   end
   get "update",       to: "update#update"
   get "file/*path",   to: "files#show", format: false
+
+  # Utolsó sor: a host route-jai nyernek, minden mást az engine kap el.
+  mount WarpEngine::Engine => "/"
 end