feat: add text widget stories and Number input stories (#9527)

<img width="842" height="488" alt="스크린샷 2026-03-07 오후 9 39 20"
src="https://github.com/user-attachments/assets/9ac8bfcd-c882-4661-851f-b08838d4fed1"
/>

## Summary
- Add Storybook stories for WidgetInputText, WidgetTextarea, and
ScrubableNumberInput
- Reorganize story titles under `Components/Input/` to align with Figma
design system
- Fix PrimeIcons not rendering in Storybook (caused by
`[&_*]:!font-inter` override)
- Fix knip unused export warnings (dead code removal + workspace config)

## Test plan
- [ ] Run `pnpm storybook` and verify Components/Input/InputText stories
render
- [ ] Verify Components/Input/TextArea stories render with label and
copy button
- [ ] Verify Components/Input/Number stories render with -/+ icons
- [ ] Toggle Storybook theme between Light/Dark and confirm Number story
adapts
- [ ] Verify existing Button stories still render correctly

🤖 Generated with [Claude Code](https://claude.com/claude-code)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9527-feat-add-text-widget-stories-and-Number-input-stories-31c6d73d3650817ba351cdef26a356c8)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

knip.config.ts

@@ -20,6 +20,10 @@ const config: KnipConfig = {
     'packages/tailwind-utils': {
       project: ['src/**/*.{js,ts}']
     },
+    'packages/shared-frontend-utils': {
+      project: ['src/**/*.{js,ts}'],
+      entry: ['src/formatUtil.ts', 'src/networkUtil.ts']
+    },
     'packages/registry-types': {
       project: ['src/**/*.{js,ts}']
     }
@@ -32,7 +36,9 @@ const config: KnipConfig = {
     '@primeuix/forms',
     '@primeuix/styled',
     '@primeuix/utils',
-    '@primevue/icons'
+    '@primevue/icons',
+    // Used by lucideStrokePlugin.js (CSS @plugin)
+    '@iconify/utils'
   ],
   ignore: [
     // Auto generated manager types
@@ -47,7 +53,9 @@ const config: KnipConfig = {
     // Pending integration in stacked PR
     'src/components/sidebar/tabs/nodeLibrary/CustomNodesPanel.vue',
     // Agent review check config, not part of the build
-    '.agents/checks/eslint.strict.config.js'
+    '.agents/checks/eslint.strict.config.js',
+    // Loaded via @plugin directive in CSS, not detected by knip
+    'packages/design-system/src/css/lucideStrokePlugin.js'
   ],
   compilers: {
     // https://github.com/webpro-nl/knip/issues/1008#issuecomment-3207756199