feat(views): add pearl-assignee-tag-short to trim the @-tag to first name

The assignee @-tag slugs Linear's full @-mention handle, so a firstname.lastname handle still renders long (:@first_last:). For someone who wants a tighter tag line, I added pearl-assignee-tag-short (default off): when on, the tag keeps only the first segment of the handle (before the first dot or space), so :@first_last: becomes :@first: and a single-token handle like alice is unchanged.

It's opt-in because first names collide across teammates, so the default stays the unambiguous full handle.

1 files changed, 14 insertions, 0 deletions

diff --git a/tests/test-pearl-labels.el b/tests/test-pearl-labels.el
index 94211b1..febb906 100644
--- a/tests/test-pearl-labels.el
+++ b/tests/test-pearl-labels.el
@@ -95,6 +95,20 @@ field -- which is the full email for teammates who never set a display name."
   "With no displayName, the tag slugs the name."
   (should (string= "@eric_bell" (pearl--assignee-tag '(:name "Eric Bell")))))
 
+(ert-deftest test-pearl-assignee-tag-short-keeps-first-segment ()
+  "With `pearl-assignee-tag-short' on, only the first name (before the first dot
+or space) is kept, so a firstname.lastname handle shortens to just the first."
+  (let ((pearl-assignee-tag-short t))
+    (should (string= "@vrezh" (pearl--assignee-tag '(:display-name "vrezh.mikayelyan"))))
+    (should (string= "@eric" (pearl--assignee-tag '(:name "Eric Bell"))))
+    ;; A single-token handle is unchanged.
+    (should (string= "@nerses" (pearl--assignee-tag '(:display-name "nerses"))))))
+
+(ert-deftest test-pearl-assignee-tag-short-off-keeps-full-handle ()
+  "Off by default: the full slugified handle is kept."
+  (should (string= "@vrezh_mikayelyan"
+                   (pearl--assignee-tag '(:display-name "vrezh.mikayelyan")))))
+
 (ert-deftest test-pearl-normalize-user-captures-display-name ()
   "The normalized user carries Linear's displayName so the @-tag can use the
 short handle while the drawer keeps the fuller name."