feat: add 13 components adapted from Oat UI

Components (.cljc + .css + tests):
- Alert (success/warning/danger/info variants)
- Badge (primary/secondary/outline/success/warning/danger)
- Card (card/card-header/card-body/card-footer)
- Accordion (collapsible with open/closed state)
- Table (headers/rows, striped/bordered variants)
- Dialog (modal with header/body/footer sections)
- Breadcrumb (nav with active item)
- Pagination (current/total with prev/next)
- Progress (value bar with color variants)
- Spinner (sm/md/lg sizes)
- Skeleton (line/box/circle/heading placeholders)
- Switch (toggle with checked/disabled states)
- Tooltip (hover text via data-tooltip attr)

CSS-only additions:
- Form elements (inputs, selects, checkboxes, radios, range, groups)
- Grid (12-column system with offsets, responsive)
- Utilities (flex, spacing, alignment, sr-only)

Also adds warning/fg-on-warning tokens to light and dark themes.
All 3 dev targets updated with full component showcase.
40 tests, 213 assertions, all passing.

test/ui/dialog_test.clj

@@ -0,0 +1,34 @@
+(ns ui.dialog-test
+  (:require [clojure.test :refer [deftest is testing]]
+            [ui.dialog :as dialog]))
+
+(deftest dialog-class-list-test
+  (testing "always returns dialog class"
+    (is (= ["dialog"] (dialog/dialog-class-list {})))))
+
+(deftest dialog-component-test
+  (testing "renders a dialog element"
+    (let [result (dialog/dialog {:id "my-dialog"} "Content")]
+      (is (= :dialog (first result)))
+      (is (= "dialog" (get-in result [1 :class])))
+      (is (= "my-dialog" (get-in result [1 :id])))))
+
+  (testing "open dialog has open attr"
+    (let [result (dialog/dialog {:open true} "Content")]
+      (is (true? (get-in result [1 :open]))))))
+
+(deftest dialog-sections-test
+  (testing "dialog-header renders header"
+    (let [result (dialog/dialog-header {} [:h3 "Title"])]
+      (is (= :header (first result)))
+      (is (= "dialog-header" (get-in result [1 :class])))))
+
+  (testing "dialog-body renders div"
+    (let [result (dialog/dialog-body {} "Body")]
+      (is (= :div (first result)))
+      (is (= "dialog-body" (get-in result [1 :class])))))
+
+  (testing "dialog-footer renders footer"
+    (let [result (dialog/dialog-footer {} "Footer")]
+      (is (= :footer (first result)))
+      (is (= "dialog-footer" (get-in result [1 :class]))))))