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

tsconfig.json

@@ -4,8 +4,8 @@
   },
   "compilerOptions": {
     "types": ["node"],
-    "lib": ["es6"],
-    "target": "es6",
+    "lib": ["es2022"],
+    "target": "es2022",
     "module": "CommonJS",
     "outDir": "build",
     "removeComments": true,