feat(recurring-tasks): enhance recurring task functionality and documentation

- Expanded schedule options for recurring tasks, including new intervals for every X days, weeks, and months.
- Added future task creation logic to ensure tasks are created within defined limits based on their schedule type.
- Updated user guide to reflect new scheduling options and future task creation details.
- Improved backend logic for recurring task creation, including batch processing and future limit calculations.
- Added environment configuration for enabling recurring jobs.
- Enhanced frontend localization for recurring task configuration labels.

docs/recurring-tasks-user-guide.md

@@ -16,24 +16,45 @@ Recurring tasks are tasks that repeat automatically on a schedule you choose. Th
 5. Save the task. It will now be created automatically based on your chosen schedule.
 
 ## Schedule Options
-You can choose how often your task repeats. Here are the most common options:
+You can choose how often your task repeats. Here are the available options:
 
 - **Daily:** The task is created every day.
-- **Weekly:** The task is created once a week. You can pick the day (e.g., every Monday).
-- **Monthly:** The task is created once a month. You can pick the date (e.g., the 1st of every month).
-- **Weekdays:** The task is created every Monday to Friday.
-- **Custom:** Set your own schedule, such as every 2 days, every 3 weeks, or only on certain days.
+- **Weekly:** The task is created once a week. You can pick one or more days (e.g., every Monday and Thursday).
+- **Monthly:** The task is created once a month. You have two options:
+  - **On a specific date:** Choose a date from 1 to 28 (limited to 28 to ensure consistency across all months)
+  - **On a specific day:** Choose a week (first, second, third, fourth, or last) and a day of the week
+- **Every X Days:** The task is created every specified number of days (e.g., every 3 days)
+- **Every X Weeks:** The task is created every specified number of weeks (e.g., every 2 weeks)
+- **Every X Months:** The task is created every specified number of months (e.g., every 3 months)
 
 ### Examples
 - "Send team update" every Friday (weekly)
-- "Submit expense report" on the 1st of each month (monthly)
+- "Submit expense report" on the 15th of each month (monthly, specific date)
+- "Monthly team meeting" on the first Monday of each month (monthly, specific day)
 - "Check backups" every day (daily)
-- "Review project status" every Monday and Thursday (custom)
+- "Review project status" every Monday and Thursday (weekly, multiple days)
+- "Quarterly report" every 3 months (every X months)
+
+## Future Task Creation
+The system automatically creates tasks up to a certain point in the future to ensure timely scheduling:
+
+- **Daily Tasks:** Created up to 7 days in advance
+- **Weekly Tasks:** Created up to 2 weeks in advance
+- **Monthly Tasks:** Created up to 2 months in advance
+- **Every X Days/Weeks/Months:** Created up to 2 intervals in advance
+
+This ensures that:
+- You always have upcoming tasks visible in your schedule
+- Tasks are created at appropriate intervals
+- The system maintains a reasonable number of future tasks
 
 ## Tips
 - You can edit or stop a recurring task at any time.
 - Assign team members and labels to recurring tasks for better organization.
 - Check your task list regularly to see newly created recurring tasks.
+- For monthly tasks, dates are limited to 1-28 to ensure the task occurs on the same date every month.
+- Tasks are created automatically within the future limit window - you don't need to manually create them.
+- If you need to see tasks further in the future, they will be created automatically as the current tasks are completed.
 
 ## Need Help?
 If you have questions or need help setting up recurring tasks, contact your workspace admin or support team.