fix dark mode, storybook config, and minor UI issues

- Add color scheme toggle to Storybook preview via globalTypes
- Remove @storybook/addon-actions (built into Storybook 9+)
- Include .storybook/ files in tsconfig.storybook.json
- Fix InlineError show more button color for readability
- Use transparent variant on Remove button for consistent red in dark mode

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

clients/web/src/components/atoms/InlineError/InlineError.tsx

@@ -38,7 +38,7 @@ export function InlineError({
             <Button
               variant="transparent"
               size="compact-xs"
-              c="dark"
+              c="var(--inspector-text-primary)"
               onClick={() => setExpanded((v) => !v)}
             >
               {expanded ? "Show less" : "Show more"}

clients/web/src/components/molecules/ServerCard/ServerCard.tsx

@@ -117,7 +117,7 @@ export function ServerCard({
             <Button variant="subtle" size="xs" onClick={onEdit}>
               Edit
             </Button>
-            <Button variant="subtle" size="xs" color="red" onClick={onRemove}>
+            <Button variant="transparent" size="xs" color="red" onClick={onRemove}>
               Remove
             </Button>
           </ActionsRow>