Release v0.1.4 — Plugins group polish, label ellipsis, signal rendering, folded-state + sticky-menu fixes · WordPress/wp-admin-sidebar

v0.1.4 lands a batch of design follow-ups, mostly on the Plugins group and customize-mode interactions, plus a couple of cross-cutting bug fixes.

What changed

Renamed Plugins → My Plugins. Disambiguates from the core Plugins admin area, leaves room for the inline attention dot to sit next to the label (matching wp-admin's native Updates [1] pattern). (#31, #38)
New chevron-down icon rendered via CSS mask, sized to match the customize icon. Both icons hover-fade 0.7 → 1 with matching timing. (#31)
Chevron moved out of the toggle button (nested <button> is invalid HTML), placed as a header sibling. A JS click-delegate on the chevron calls toggle.click() so clicking it still toggles expand/collapse. (#31)
Header tightened: 34px height (matches wp-admin's top-level item baseline), box-sizing: border-box, padding 4px 4px 4px 8px (left-8 aligns label with menu-item icon column), 16px top spacing to separate from the row above, hover-bg removed. Toggle and label are flex-shrinkable with text-overflow: ellipsis for longer future labels. (#31)

Plugin labels stay on a single line in customize mode. .wp-menu-name got overflow: hidden, white-space: nowrap, text-overflow: ellipsis so long names like "LiteSpeed Cache" / "WooCommerce" no longer wrap and break drag-target predictability. (#34)
Customize button tooltip — Customize plugins shows on hover/focus-visible above-and-right of the button, 250ms show-delay, 100ms hide. CSS-only via data-tooltip + ::after with matching aria-label. (#20)
Collapse Menu stays visible (disabled) in customize mode instead of being removed, so the layout doesn't jump on enter/exit. Disabled state: opacity 0.4, cursor not-allowed, pointer-events: none, tabindex="-1", aria-disabled="true". Selector covers both <a> (legacy) and <button id="collapse-button"> (wp-admin 6.9+). (#18)

Group-header hover no longer paints child icons blue. wp-admin's li.menu-top:hover .wp-menu-image::before cascade was bleeding through to all children of the group LI; now only the actually-hovered child picks up the hover blue. (#36)
Item-level signals render for count and badge triggers, not just numeric_badge. Children that fired attention via count (e.g. Payments, Yoast SEO with count-1) now show an inline badge matching native wp-admin's Updates [1] styling — circular for single digits, pill for multi-digit. Badge appended inside .wp-menu-name so it sits next to the label, not on a new line. (#40)

Folded state shows only the chevron for the My Plugins group, centred in the icon column, matching peer top-level items. Click-to-toggle still works. (#33)
Folded-state CSS gated to ≥783px so the ≤782px mobile drawer keeps the full group header alongside the rest of the sidebar items. (#42)

No more empty band at the top of the sidebar after collapsing/expanding the My Plugins group on long admin pages. Toggle now dispatches a synthetic resize event so wp-admin's setMenuPosition reflows the sticky menu against the new height. (#44)

PHP test suites pass on trunk. JS/CSS changes are covered by manual verification (per-PR test plans).

GPL-2.0-or-later.