22 call sites across 16 consumer modules migrated to the wave-19 facade:
context.account.postbox.mediaBox.shortLivedResourceCachePathPrefix(resource.id)
->
context.engine.resources.shortLivedResourceCachePathPrefix(id: EngineMediaResource.Id(resource.id))
ItemListStickerPackItem additionally drops the wave-18 `let rawResource` intermediate.
Skipped: MediaEditorComposerEntity.swift:245 (uses local `postbox:` init-param,
not `context.account.postbox`; needs its own wave). No modules become Postbox-free
this wave — each still has other Postbox usage.
Adds three thin forwarding methods on TelegramEngine.Resources
(fetch, status, data) over MediaBox, then migrates SaveToCameraRoll's
three public functions to use them, drops import Postbox from the
module (source + Bazel dep), and updates all 23 call sites across 14
caller files atomically.
Bundled: spec + fix + plan + C1 facades + C2 SaveToCameraRoll rewrite
+ BUILD dep drop + CLAUDE.md outcome.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Ilya Laktyushin