Inspect generated-output storage refs

[MicrowaveDev]

Summary

• add a bounded AdminRead route for inspecting generated/static output refs that do not have StorageObject metadata
• page unknown generated refs from the database, then ask the storage backend for runtime file/DAG stats
• update storage-space docs, route/scalability inventories, and tests for the new inspection path

Validation

• node --import tsx --experimental-global-customevent -e "await import('./app/modules/storageSpace/index.ts')"
• node --import tsx --experimental-global-customevent ./node_modules/.bin/mocha --require ./test/setupQuietLogs.cjs test/storageSpaceApiUnit.test.ts --exit -t 60000
• npm run security:route-inventory:update
• npm run database:scalability:update
• npm run generate-docs
• npm run security:route-inventory
• npm run database:scalability
• Docker integration run for test/storageSpaceUsage.test.ts after database:sync-models and migrate-all-database
• git diff --check