Add tel form field

[mjauvin]

Related docs PR: wintercms/docs#255

telephone:
    label: Phone number
    type: tel
    pattern: "[0-9]{3}-[0-9]{3}-[0-9]{4}"
    placeholder: xxx-xxx-xxxx
    maxlength: 20
    minlength: 12
    size: 20
    required: true
    options:
        514-123-4567: First Test Phone Number
        800-111-2222: Second Test Phone Number

Summary by CodeRabbit

• New Features
  • Added telephone input field widget supporting preview and edit modes
  • Includes optional datalist with label translation capabilities
  • Supports validation attributes: autocomplete, maxlength, minlength, pattern, and placeholder

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Walkthrough

A new PHP partial for rendering a telephone input field with dual modes: preview mode displays a tel: link or empty placeholder, while edit mode renders a tel input with optional datalist support and dynamic attributes including autocomplete, validation patterns, and placeholder text.

Changes

Cohort / File(s)	Summary
Telephone Input Partial modules/backend/widgets/form/partials/_field_tel.php	New file introducing telephone field partial with conditional preview/edit mode rendering, dynamic attribute binding, optional datalist with label translation support, and error handling via type-checking

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~22 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The PR title 'Add tel form field' accurately describes the main change: introduction of a new telephone input form field type.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

• 📝 Generate docstrings (stacked PR)
• 📝 Generate docstrings (commit on current branch)

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch add-phone-field

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[LukeTowers]

@mjauvin can you do up a docs PR for this field too? ❤️

[mjauvin]

@mjauvin can you do up a docs PR for this field too? ❤️

Done!