refactor(app-proxy): drop invite metadata and database access (#2464)

deploy/self-hosting/.env.example

@@ -140,7 +140,7 @@ FLUXER_DISCOVERY_ENABLED=true
 # budget roughly shared_buffers + (server max_connections x 12 MB) +
 # (3 x autovacuum_work_mem) + 300 MB for page cache and WAL. Note this is the
 # server setting, distinct from the per-service FLUXER_POSTGRES_MAX_CONNECTIONS
-# pool sizes used by the api, worker, app-proxy and shards.
+# pool sizes used by the api, worker and shards.
 #FLUXER_POSTGRES_SERVER_MAX_CONNECTIONS=150
 #FLUXER_POSTGRES_SHARED_BUFFERS=512MB
 #FLUXER_POSTGRES_EFFECTIVE_CACHE_SIZE=2GB

deploy/self-hosting/docker-compose.yml

@@ -460,7 +460,6 @@ services:
         limits:
           memory: ${FLUXER_APP_PROXY_MEMORY_LIMIT:-256mb}
     environment:
-      <<: *fluxer-postgres-env
       FLUXER_APP_PROXY_HOST: 0.0.0.0
       FLUXER_APP_PROXY_PORT: "8080"
       DISCOVERY_UPSTREAM_URL: http://caddy:8088/api/.well-known/fluxer
@@ -477,11 +476,9 @@ services:
       FLUXER_CSP_EXTRA_WORKER_SRC: ${FLUXER_CSP_EXTRA_WORKER_SRC:-}
       FLUXER_CSP_EXTRA_MANIFEST_SRC: ${FLUXER_CSP_EXTRA_MANIFEST_SRC:-}
       FLUXER_CSP_REPORT_URI: ${FLUXER_CSP_REPORT_URI:-}
-      FLUXER_POSTGRES_MAX_CONNECTIONS: "5"
     depends_on:
       api: {condition: service_healthy}
       caddy: {condition: service_healthy}
-      postgres: {condition: service_healthy}
 
   snowflakes:
     <<: *fluxer-service