Merge trunk into add/reader branch

Resolved merge conflicts:
- includes/functions.php: Added Mention type handling from trunk
- includes/rest/class-inbox-controller.php: Updated get_local_recipients to use Following::get_follower_ids for public activities
- package.json: Merged dependency updates from trunk with Reader UI deps
- package-lock.json: Regenerated with npm install

Author: pfefferle

.claude/skills/activitypub-pr-workflow/SKILL.md

@@ -35,7 +35,7 @@ try/{idea}       # Experimental ideas.
 git checkout -b add/new-feature
 
 # Create PR with GitHub CLI.
-gh pr create --assignee @me --reviewer Fediverse
+gh pr create --assignee @me --reviewer Automattic/fediverse
 
 # Check PR status and CI.
 gh pr status
@@ -74,6 +74,8 @@ The repository uses Jetpack Changelogger for automated changelog generation.
 
 Every PR template (`.github/PULL_REQUEST_TEMPLATE.md`) includes changelog fields:
 
+**CRITICAL:** You must use the exact template markup from `.github/PULL_REQUEST_TEMPLATE.md`. Do not create custom formatting - use the actual checkboxes `- [x]` and `<details>` sections exactly as shown in the template.
+
 1. **Check "Automatically create a changelog entry" checkbox**
 2. **Select Significance:** Patch/Minor/Major
 3. **Select Type:** Added/Changed/Deprecated/Removed/Fixed/Security

.distignore

@@ -5,6 +5,7 @@
 .DS_Store
 .editorconfig
 .git
+.gitattributes
 .github
 .gitignore
 .githooks