perf: bound request work and resource usage (#866)

* perf: bound request work and resource usage

* fix: address performance review regressions

* fix: guard content expiration and dashboard state

* fix: tolerate cache outages and retire derived paths

* fix: revalidate expiration claims and status pagination

* fix: retry interrupted repository metadata cleanup

* fix: retire obsolete content cache storage

* fix: activate tree metadata and recheck expiration claims

* fix: fence cache publication across expiration

* fix: recover staged trees and enforce cache lifecycle cleanup

* fix: prune expired transforms during database outages

* fix: finish conference removals and reload expiration candidates

docker-compose.yml

@@ -54,6 +54,13 @@ services:
     environment:
       - PORT=5000
       - SERVICE_NAME=Streamer
+      - DB_HOSTNAME=mongodb
+      - REDIS_HOSTNAME=redis
+    depends_on:
+      mongodb:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
     healthcheck:
       test:
         - CMD