feat(input): add password manager ignore prop

[awhobbs87]

Summary

• Add an opt-in passwordManagerIgnore prop to Input for non-credential fields that password managers misclassify.
• Apply common password manager suppression hints, including Keeper's documented keeper-ignore class.
• Document the prop and cover the emitted hints in the Input tests.

Testing

• pnpm --filter @cloudflare/kumo exec vitest run --project=unit src/components/input/input.test.tsx
• pnpm exec prettier --check packages/kumo/src/components/input/input.tsx packages/kumo/src/components/input/input.test.tsx packages/kumo-docs-astro/src/pages/components/input.mdx .changeset/input-password-manager-ignore.md

Local Check Notes

• pnpm typecheck is currently blocked in this checkout by Node 22.22.1 vs required 24.12.0, missing screenshot-worker dependencies, and missing generated registry/schema state.

• pnpm --filter @cloudflare/kumo typecheck and pnpm --filter @cloudflare/kumo lint are also blocked by missing generated packages/kumo/ai/component-registry.json and dependency mismatches in the local checkout.

• Reviews

• bonk has reviewed the change

• automated review not possible because: this PR was opened by an agent before Bonk review

• Tests

• Tests included/updated

• Automated tests not possible - manual testing has been completed as follows:

• Additional testing not necessary because:

[pkg-pr-new]

npm i https://pkg.pr.new/@cloudflare/kumo@511

commit: 3ba6c02

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Commit: 3ba6c02

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Visual Regression Report — 8 changed, 30 unchanged

8 screenshot(s) with visual changes:

Button / Sizes

477 px (0.47%) changed

Before	After	Diff

Button / Loading State

8 px (0.01%) changed

Before	After	Diff

Dialog (Open)

0 px (0%) changed

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Select / Select Sizes

170 px (0.09%) changed

Before	After	Diff

Select / Select With Field

635 px (0.54%) changed

Before	After	Diff

Select / Select With Tooltip

294 px (0.29%) changed

Before	After	Diff

Select / Select Loading

0 px (0%) changed

Before	After	Diff

Select (Open)

814 px (0%) changed

Before	After	Diff

30 screenshot(s) unchanged

• Button / Basic
• Button / Variant: Primary
• Button / Variant: Secondary
• Button / Variant: Ghost
• Button / Variant: Destructive
• Button / Variant: Outline
• Button / Variant: Secondary Destructive
• Button / With Icon
• Button / Icon Only
• Button / Disabled State
• Button / Title
• Button / Link as Button
• Dialog / Dialog With Actions
• Dialog / Dialog Basic
• Dialog / Dialog Alert
• Dialog / Dialog Confirmation
• Dialog / Dialog With Select
• Dialog / Dialog With Combobox
• Dialog / Dialog With Dropdown
• Select / Select Basic
• Select / Select Without Label
• Select / Select Placeholder
• Select / Select Custom Rendering
• Select / Select Multiple
• Select / Select Complex
• Select / Select Disabled Options
• Select / Select Disabled Items
• Select / Select Grouped
• Select / Select Grouped With Disabled
• Select / Select Long List

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Generated by Kumo Visual Regression