Make category tree items span full parent width (v0.1.9)

Move <a> elements to be direct children of the list-group so they
naturally fill the full offcanvas/sidebar width. Chevron toggle moved
inside the link with click interception to prevent navigation.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

CLAUDE.md

@@ -345,10 +345,20 @@ The child theme inherits from `wp-bootstrap` via WordPress `Template: wp-bootstr
 
 ## Version History
 
-Current version: **v0.1.8**
+Current version: **v0.1.9**
 
 ## Session History
 
+### 2026-03-29 — v0.1.9 Category Tree Full-Width Items
+
+**Scope:** Made category tree items span the full parent/offcanvas width.
+
+**Files modified (3):**
+
+- `templates/global/category-tree.html.twig` — Added `w-100` to nav and list-group containers
+- `templates/global/category-tree-node.html.twig` — Made `<a>` elements direct children of the list-group; moved chevron toggle inside the link as a `<span>` with `event.preventDefault()` click interception
+- `style.css` — Version bump 0.1.8 → 0.1.9
+
 ### 2026-03-29 — v0.1.8 Restyle Category Tree to Idiomatic Bootstrap
 
 **Scope:** Restyled the category tree sidebar to use Bootstrap's native `list-group-item-action` pattern with subtler active highlighting.