Replace the separate delivery records tab with a per-service dropdown column in the ledger table that opens the existing detail dialog with one-time credential claim. Sync now refreshes ledger, container services and delivery records together; errors surface via message toast. components.d.ts regenerated (dropdown components in, tabs out).
Management.vue gains a second tab listing MySQL delivery tasks from the backend (search, status filter, detail dialog, one-time credential reveal with copy/download). components.d.ts regenerated for the new Element Plus components.
Also add narrow-viewport (<=760px) style tweaks to AppHeader/AppMain/DefaultLayout; these are partial small-screen optimizations, not a full mobile adaptation.