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

package.json

@@ -17,6 +17,9 @@
     "knip": "knip",
     "migrate:credentials": "node -r ts-node/register src/scripts/migrate-credentials.ts",
     "recover:owners": "node -r ts-node/register src/scripts/recover-repository-owners.ts",
+    "migrate:performance": "node -r ts-node/register src/scripts/create-performance-indexes.ts",
+    "test:performance": "mocha test/performance-*.test.js",
+    "benchmark:performance": "node scripts/performance-benchmark.js",
     "build:ui": "gulp",
     "test:ui": "gulp && mocha test/frontend-regressions.test.js test/dashboard-ui.test.js test/vue-ui.test.js"
   },