Module cache 

Structs

CacheEntry

A cached update check result.

Functions

clear_cache

Delete the cache file for the given app. Ignores “not found” errors.

create_cache_entry

Create a new CacheEntry with the current timestamp.

is_cache_stale

Check if a cache entry is stale based on the given interval (in milliseconds).

read_cache

Read the cached update check for the given app. Returns None on any error (missing file, invalid JSON, etc.).

write_cache

Write a cache entry atomically (temp file + rename). Creates directories if needed.