fix: react-doctor small categories 68→72 (a11y+perf+style, 21 fixes)

- no-outline-none (2): add focus-visible outline to inline-styled inputs
- no-redundant-roles (2): drop role="list" on <ul>
- click-events-have-key-events (2): convert div backdrops to buttons
- no-static-element-interactions (2): add role+tabIndex+onKeyDown to clickable divs
- rendering-svg-precision (2): round SVG path decimals
- no-tiny-text (2): 11px → 12px on CommandPalette hints
- js-set-map-lookups (4→1): Sets for visibleItems, regex for keyword match
- no-gray-on-colored-background (4): use color-matched text instead of stone-400/900
- no-transition-all (4): list specific properties in transition shorthand

src/components/admin/CommandPalette.tsx

@@ -322,13 +322,8 @@ function CommandPaletteDialog({ onClose }: { onClose: () => void }) {
             aria-label="Search command palette"
             spellCheck={false}
             autoComplete="off"
+            className="flex-1 min-w-0 border-none outline-none focus-visible:outline-2 focus-visible:outline-[var(--color-accent)] focus-visible:outline-offset-2 bg-transparent text-base"
             style={{
-              flex: 1,
-              minWidth: 0,
-              border: "none",
-              outline: "none",
-              background: "transparent",
-              fontSize: "1rem",
               lineHeight: 1.4,
               color: "var(--admin-text-primary)",
               fontFamily: "inherit",
@@ -424,7 +419,7 @@ function CommandPaletteDialog({ onClose }: { onClose: () => void }) {
                   </span>
                   <span
                     style={{
-                      fontSize: "0.6875rem",
+                      fontSize: "0.75rem",
                       textTransform: "uppercase",
                       letterSpacing: "0.05em",
                       color: "var(--admin-text-muted)",
@@ -445,7 +440,7 @@ function CommandPaletteDialog({ onClose }: { onClose: () => void }) {
           style={{
             padding: "0.5rem 1rem 0.625rem",
             borderTop: "1px solid var(--admin-border)",
-            fontSize: "0.6875rem",
+            fontSize: "0.75rem",
             color: "var(--admin-text-muted)",
             textAlign: "center",
             letterSpacing: "0.02em",