fix(DateTimeRangePicker): preserve meridiem on Enter

[fallintoplace]

Description

• What: Preserve the selected meridiem when Enter commits a time.
• Why: Separate Enter conversion could drop pm.
• Implementation: Reuse handleTimeChange for Enter.
• Example: Enter on 2:37 pm keeps 2:37 pm.

Links and tickets

• None.

Good to know

• No visual or breaking changes.

Checklist

• Breaking changes? (add migration notes in changesets)
• Visual changes? (specify in changesets)
• Design review needed?

Contribution

• Sufficient research before PR
• Self-reviewed the PR
• Manually tested the changes (when applies - visual confirmation in Storybook)
• build and build-storybook work locally
• Tests and Stories are aligned with the changes

Accessibility

• Keyboard - Enter keeps the selected meridiem when committing a time.
• Names — Accessible names are unchanged.
• Vision — No colors or focus styles changed.

Screenshots

• Not applicable; there are no visual changes.

[changeset-bot]

🦋 Changeset detected

Latest commit: 0786d31

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@clickhouse/click-ui	Patch

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Click here if you're a maintainer who wants to add another changeset to this PR

[XOP]

thank you for contribution, @fallintoplace !
please update the PR description according to the template.

[Copilot]

Copilot review overview

🟢 Approval recommended

The focused fix reuses existing conversion logic, includes regression coverage, and has no identified blocking issues.

Review effort: Balanced
Findings: None

What changed in this PR

Fixes DateTimeRangePicker so committing a time with Enter preserves the selected meridiem.

Changes:

• Reuses the existing time-change handler for Enter.
• Adds regression coverage for preserving 2:37 pm.
• Includes a patch changeset.

Validation was limited to static review; tests and interactive accessibility checks were not run.

File	Description
src/​components/​DatePicker/​DateTimeRangePicker.tsx	Reuses meridiem-aware logic on Enter.
src/​components/​DatePicker/​DateTimeRangePicker.test.tsx	Tests that Enter preserves PM.
.changeset/​fix-datetime-range-picker-enter-meridiem.md	Documents the patch fix.

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Chromatic Storybook

Check	Status	Link
Storybook	✅ 642 stories published	Open Storybook
UI Tests	✅ 642 tests unchanged	Open build

Built from commit: c9d02557f8ef819ed2e0be6dacee2934f50f36b9 · Chromatic run

_{Statuses as of the end of the run. The build link shows the live review state.}