feat: Progressbar and group name and image at series card

[TenzDelek]

[greptile-apps]

Confidence Score: 5/5

Safe to merge; changes are well-scoped to display logic and data parsing with no impact on write paths or auth flows.

The data-layer changes (entity fields, model parsing, cache versioning, optional auth forwarding) are additive and backward-compatible. The widget refactoring replaces inline duplicates with shared components without altering any navigation, state-mutation, or enrollment logic. The two findings are style-level observations with no runtime impact.

No files require special attention.

_{Reviews (2): Last reviewed commit: "Update lib/features/home/presentation/wi..." | Re-trigger Greptile}

[greptile-apps]

seriesListKey was not given a version suffix, unlike featuredSeriesKey (→ v3) and seriesByIdKey (→ v2). The same staleness issue applies: a device with a series_list:$language entry from before auth was wired to the endpoint will serve the cached models (missing progressJson/partnerJson) on the initial render, so the progress bar and partner row won't appear until the background refresh completes. Adding a version token (e.g. 'series_list:v2:$language') would invalidate those entries on first launch.