Consolidate MangaCircus app, scraper, and Compose baseline

.env.example

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+APP_IMAGE=mangacircus:local
+VCS_REF=development
+READER_BIND=127.0.0.1
+READER_PORT=8080
+LIBRARY_PATH=./library
+DATA_PATH=./data
+SCRAPER_DATA_PATH=./data/scraper
+SENTINEL_DATA_PATH=./data/sentinel
+SCRAPER_TOKEN_PATH=./.secrets/scraper_token
+TZ=Europe/Berlin
+COOKIE_SECURE=0
+PROXY_NETWORK=mangacircus-edge