Changelog

Add FoldersSynced event to EmailSyncManager that fires after folder

list is persisted but before message sync begins. This enables the

sidebar to populate immediately with folder structure while messages

sync in the background.

Introduce SyncStatusMessage property on EmailSyncManager that tracks

human-readable sync phase text (Connecting, Syncing folders, Syncing

messages with counts). Add corresponding SyncStatusText and

IsSyncDeterminate properties to EmailViewModel for UI binding.

Move sync progress indicator from above the message list to the

lower-right footer. The footer now shows an indeterminate progress

bar during folder sync phase, switching to a determinate bar with

message count during message sync. When not syncing, the footer

falls back to showing the existing StatusMessage text.

Update OnMessageBatchSynced in EmailPlugin to capture sync state

snapshots (count, total, status) on the background thread before

posting to UI thread, eliminating cross-thread read races.

Wire OnFoldersSyncedAsync in EmailViewModel.MessageActions to reload

folders for the active account when FoldersSynced fires, giving

immediate sidebar feedback after account creation.

Version bump to 1.14.0.

Sync order: Changed FetchHeadersBatchedAsync from fire-and-forget

IProgress<T> callback to sequentially awaited Func<T, Task>. Batches

now persist in guaranteed newest-first order. Messages within each

batch and in the incremental sync path are sorted by date descending.

The MessageBatchSynced event now includes EmailAccount and EmailFolder

context for downstream consumers.

Offline body cache: Added EmailBodyCacheService backed by local

filesystem storage under WorkspaceDataPath/email-cache/. Bodies are

device-local and never synced between devices — each device downloads

its own copy directly from the IMAP server. A background Channel-based

download queue processes newly synced message batches (newest first).

The ViewModel checks the local cache before falling back to IMAP for

on-demand body fetches, and caches the result for future offline

access. Cache is cleaned up on account removal.

Add ConnectForSessionAsync to ImapSyncService returning a persistent

ImapClient. Add overloads for SyncFoldersAsync, FetchNewHeadersAsync,

and FetchHeadersBatchedAsync accepting an existing ImapClient. Update

EmailSyncManager.SyncSingleAccountAsync to open one connection at the

start and reuse it across folder sync and message fetch. Reduces

connections from 15+ (one per folder) to 1 per sync cycle. Existing

standalone methods preserved for on-demand operations.

Add HtmlSanitizer using HtmlAgilityPack: parses email HTML into safe

RenderBlock records (paragraphs, headings, links, lists, blockquotes,

preformatted text). Strips scripts, styles, iframes, objects, event

handlers, and external images. HtmlMessageRenderer TemplatedControl

renders sanitized HTML as composed Avalonia controls when sender is

trusted, plain text otherwise. Links open in system browser. Trust

banner in ReadingPaneView offers "Trust sender", "Trust domain", and

"Open in Browser" (writes HTML to temp file). Added HtmlAgilityPack

package dependency.

Introduce SenderTrustList model (address + domain sets) persisted via

IPluginSettings. SenderTrustService provides IsTrusted, TrustAddress,

TrustDomain, and RevokeTrust operations. ViewModel exposes IsSenderTrusted

computed property updated on message selection, plus TrustSenderCommand

and TrustDomainCommand. Wired into plugin lifecycle. Prepares for HTML

renderer trust gate in next commit.