docs: update changelog for v0.2.28

Author: github-actions[bot]

changelog.md

@@ -1,5 +1,31 @@
 # Changelog
 
+## v0.2.28
+
+### Added
+
+- Press Cmd+F (Ctrl+F on Windows/Linux) inside a conversation to search for text, with match-case and match-whole-word toggles, navigation between matches, and a configurable dialog corner in General settings.
+- Quick chats now show token usage, context window, and AI credit spend in the chat title menu, matching the detail already available in regular sessions.
+- When starting a session from an issue, a new "New session in repository..." option in the start menu lets you pick which of your project repositories the session opens in.
+
+### Changed
+
+- Comments in the pull request and merge drawers now render their content progressively as you scroll, reducing load time when opening pull requests with many comments.
+- Issue pills above the composer now show the entity type in the label (for example 'Issue #1234'), matching the existing pattern used for pull request pills ('PR #6483').
+- Pasting a GitHub URL (e.g. github.com/org/repo/pull/123) into the "Add GitHub repository" search now automatically extracts the repository and searches for it instead of treating the full URL as a query.
+- Scheduled session automations now show a badge in the sidebar and display the next scheduled run time in the hover preview.
+- The banner shown during an in-progress merge, rebase, cherry-pick, or revert now reads "Resolving …" instead of "… paused", more accurately reflecting that the operation is actively being handled by the agent.
+- The conversation timeline is now always shown by default — no setting required. Timeline navigation and bookmarks are available whenever there is enough conversation history.
+- The deep link URL for the Inbox view has changed from `ghapp://inbox` to `ghapp://mywork`.
+
+### Fixed
+
+- Collapsing a session in the sidebar now correctly hides all of its descendants, even when they belong to different repository groups.
+- Fixed a soft-lock during onboarding where the "Sign in to GitHub" button never appeared for users with the system Reduce Motion accessibility setting enabled, or when the headline text was empty.
+- Fixed blank terminal tab and scripts not executing when running commands on Windows with Command Prompt (cmd.exe) as the default shell.
+- Fixed the Plan pill in the composer being taller and misaligned compared to other pills.
+- Unlimited plans no longer show incorrect exhausted-quota indicators, and session AI-credit spend is now shown consistently in the usage gauge and workspace info popover.
+
 ## v0.2.27
 
 ### Fixed