Feature: /remind command — schedule a one-time reminder Background: Given user "user_abc123" is sending commands And the current chat_id is "chat_xyz" Scenario: No arguments shows usage When user sends "/remind" Then reply contains "Usage: /remind" Scenario: Missing message part shows usage When user sends "/remind 10m" Then reply contains "Usage: /remind" Scenario: Invalid time format returns error When user sends "/remind badtime check build" Then reply contains "Invalid time format" Scenario: Valid reminder with seconds is scheduled When user sends "/remind 30s check the build" Then reply contains "Reminder #" And reply contains "30s" And scheduler has 1 pending job Scenario: Valid reminder with minutes is scheduled When user sends "/remind 5m deploy done" Then reply contains "5m" And scheduler has 1 pending job Scenario: Valid reminder with hours is scheduled When user sends "/remind 2h weekly report" Then reply contains "2h" And scheduler has 1 pending job