Module loader 

One in-flight snapshot job, isolated from UI navigation. Generation checks discard stale scopes/pages; state hints coalesce in the driver and resyncs drop the worker’s caches.

Loader is the UI-agnostic seam: the terminal monitor and the desktop app both read their catalog, Runs page and selected Run through it.

Structs

Completed

Input

Everything one snapshot read needs; the caller keeps the catalog between reads.

Loader

A persistent, read-only snapshot worker with its caches. Call Loader::load on a blocking thread; it never writes.

Origin

Where a snapshot was read from: the state identity and the database file.

Page

Which Runs page of which scope a snapshot reads, and the Run it opens.

Selection

The monitor’s page plus what tells an obsolete job from a current one.

Snapshot

One consistent read: the catalog, the scope’s Runs page and the selected Run with its tree.

Functions

newer_offset

Where the page of newer Runs starts, when this one is not the first.

older_offset

Where the page of older Runs starts, when the page shown (shown Runs of limit) is full.