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.

bb.edn

@@ -17,8 +17,36 @@
   {:doc "Run all unit tests"
    :requires ([clojure.test :as t]
               [ui.button-test]
+              [ui.alert-test]
+              [ui.badge-test]
+              [ui.card-test]
+              [ui.accordion-test]
+              [ui.table-test]
+              [ui.dialog-test]
+              [ui.spinner-test]
+              [ui.skeleton-test]
+              [ui.progress-test]
+              [ui.switch-test]
+              [ui.tooltip-test]
+              [ui.breadcrumb-test]
+              [ui.pagination-test]
               [ui.theme-test])
-   :task (let [{:keys [fail error]} (t/run-tests 'ui.button-test 'ui.theme-test)]
+   :task (let [{:keys [fail error]} (t/run-tests
+                                      'ui.button-test
+                                      'ui.alert-test
+                                      'ui.badge-test
+                                      'ui.card-test
+                                      'ui.accordion-test
+                                      'ui.table-test
+                                      'ui.dialog-test
+                                      'ui.spinner-test
+                                      'ui.skeleton-test
+                                      'ui.progress-test
+                                      'ui.switch-test
+                                      'ui.tooltip-test
+                                      'ui.breadcrumb-test
+                                      'ui.pagination-test
+                                      'ui.theme-test)]
            (when (pos? (+ fail error))
              (System/exit 1)))}