Use channel folders in the "Inbox" view#2186

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chrisbobbe wants to merge 12 commits intozulip:mainfrom

chrisbobbe:pr-inbox-channel-folders

Commits on Mar 13, 2026

inbox [nfc]: Refactor condition for including _AllDmsSectionData
chrisbobbe
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inbox [nfc]: Group a channel-level metadata line with another one; shorten it
chrisbobbe
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inbox: Use ChannelStore.compareChannelsByName for channel sorting

chrisbobbe
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claude
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inbox [nfc]: Build list of channel-section data first, then sort after
chrisbobbe
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inbox [nfc]: Refactor how we put pinned before non-pinned channels
chrisbobbe
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inbox [nfc]: Call list items "items", not "sections"
chrisbobbe
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inbox [nfc]: Use named params for _InboxListItemChannelSection constructor
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inbox: Introduce folder-style headers, just for PINNED and OTHER

chrisbobbe
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claude
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inbox: Use folder-style header for all-DMs, too
chrisbobbe
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inbox [nfc]: Merge _HeaderItem base class into its only remaining subclass
chrisbobbe
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channel: Support "UI channel folder" concept

chrisbobbe
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claude
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inbox: Group channels by folder, including realm-level folders

chrisbobbe
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claude
committed