feat: add instance config endpoint

config/packages/security.yaml

@@ -70,6 +70,7 @@ security:
         - { path: ^/api$, roles: PUBLIC_ACCESS }
         - { path: ^/api/docs, roles: PUBLIC_ACCESS }
         - { path: "^/api/watchlists/[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/calendar$", roles: PUBLIC_ACCESS }
+        - { path: "^/api/config$", roles: PUBLIC_ACCESS }
         - { path: ^/api, roles: IS_AUTHENTICATED_FULLY }
 
 when@test:

config/services.yaml

@@ -4,7 +4,9 @@
 # Put parameters here that don't need to change on each machine where the app is deployed
 # https://symfony.com/doc/current/best_practices.html#use-parameters-for-application-configuration
 parameters:
-    mailer_sender_email: '%env(MAILER_SENDER_EMAIL)%'
+    mailer_sender_email: '%env(string:MAILER_SENDER_EMAIL)%'
+    oauth_enabled: '%env(bool:OAUTH_ENABLED)%'
+    limited_features: '%env(bool:LIMITED_FEATURES)%'
 
 services:
     # default configuration for services in *this* file