fix: building in pipeline requires default env vars

.env

@@ -36,3 +36,34 @@ MERCURE_JWT_SECRET="!ChangeThisMercureHubJWTSecretKey!"
 # MESSENGER_TRANSPORT_DSN=redis://localhost:6379/messages
 MESSENGER_TRANSPORT_DSN=doctrine://default?auto_setup=0
 ###< symfony/messenger ###
+
+APP_URL=
+APP_SECRET=
+
+# Use the DATABASE_URL below to use the MariaDB container
+# provided in the example.compose.yml file, or remove this
+# line and fill in the details of your own MySQL/MariaDB server
+DATABASE_URL=
+
+# Fill in your MySQL/MariaDB connection details
+#DATABASE_URL="mysql://<mysql user>:<mysql pass>@<mysql host>:3306/<mysql db name>?serverVersion=10.6.19.2-MariaDB&charset=utf8mb4"
+
+# Enter your Real Debrid API key
+# This key is never saved anywhere
+# else and is passed to Torrentio
+# to retrieve download options
+REAL_DEBRID_KEY=
+
+# Enter you TMDB API key
+# This is used to provide rich search results
+# when searching for media and rendering the
+# Popular Movies and TV Shows section.
+TMDB_API=
+
+MERCURE_JWT_SECRET=
+
+# Use your own Redis instance or use the
+# below value to use the container included
+# in the example compose.yml file.
+REDIS_HOST=
+