Add ical_value property to vRecur

[xxiaoxiong]

This PR adds the ical_value property to vRecur, contributing to Issue #876.

Changes

• Added ical_value property to vRecur (src/icalendar/prop/recur/recur.py)
  • Returns: dict[str, list[Any]] - The recurrence rule dictionary
  • Type hint: dict[str, list[Any]]
  • RFC reference: :rfc:5545#section-3.3.10
  • Includes comprehensive docstring with examples
  • Each key represents a rule part (FREQ, COUNT, INTERVAL, BYDAY, etc.)
  • Each value is a list of the corresponding values

Tests

• Created test_vRecur.py with 8 comprehensive test cases:
  • test_ical_value_basic - Tests basic structure
  • test_ical_value_daily_count - Tests DAILY with COUNT
  • test_ical_value_weekly_byday - Tests WEEKLY with BYDAY
  • test_ical_value_monthly_interval - Tests MONTHLY with INTERVAL
  • test_ical_value_yearly_bymonth - Tests YEARLY with BYMONTH
  • test_ical_value_complex_rule - Tests complex multi-part rule
  • test_ical_value_from_constructor - Tests constructor-created vRecur
  • test_ical_value_wkst - Tests WKST parameter
• All tests pass: 8 passed

Quality Checks

• Add type hint
• Add docstring with RFC reference
• Add tests for all code paths
• Pass ruff format check
• Pass ruff lint check
• All tests pass

Relates to #876

[read-the-docs-community]

Documentation build overview

📚 icalendar | 🛠️ Build #32600764 | 📁 Comparing 8bd6130 against latest (7357cec)

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5 files changed · ± 5 modified

± Modified

• 404.html
• genindex.html
• reference/api/icalendar.prop.recur.html
• reference/api/icalendar.prop.recur.recur.html
• _modules/icalendar/prop/recur/recur.html

[stevepiercy]

@xxiaoxiong thank you for opening this PR. Because you haven't responded to the reviews and CI failures, I'm closing all of your PRs to let other contributors know that they are free to work on it. You're welcome to address our comments, resolve the matters, and reopen your pull request at any time, specifically to address the question of AI usage and add a change log, per Contribute. Thank you!