feat(RaidLogAuto): add ACL auto-enable and CombatLog.txt reminder

[Xerrion]

Description

Add two quality-of-life features that fire automatically when combat logging starts:

1. Advanced Combat Logging (ACL) auto-enable - When the addon enables combat logging (entering a raid or M+ key), it checks if ACL is turned on. If not, it automatically enables the advancedCombatLogging CVar and notifies the user. This ensures WarcraftLogs/WoWAnalyzer uploads always have the detailed data they need.

2. CombatLog.txt reminder dialog - A one-time StaticPopup dialog reminds the user to delete their CombatLog.txt before uploading logs. The dialog is "set-and-forget": once the user clicks "OK, Got It", the combatLogReminderDismissed SavedVariable is set to true and the dialog never appears again.

Additional changes:

• New /rla acl slash command to manually check or enable ACL
• ACL status shown in /rla status output
• .luacheckrc updated with new globals (GetCVar, SetCVar, StaticPopupDialogs, StaticPopup_Show)
• AGENTS.md updated with manual test steps for both features

All 5 version files updated consistently: Retail, Mists, Cata, TBC, Classic.

Type of Change

• New feature (non-breaking change that adds functionality)

Related Issues

N/A

Testing

• Luacheck passes (luacheck .) - all 5 version files pass clean
• Tested in-game manually
• WoW version(s) tested on:

Manual Test Checklist

ACL Auto-Enable:

1. /console advancedCombatLogging 0 to disable ACL
2. Enter a raid instance - verify chat: "Advanced Combat Logging was disabled. Automatically enabled it for you."
3. /rla status should show "Advanced Combat Logging: ON"
4. Re-enter - verify no duplicate message (already enabled)

CombatLog.txt Reminder:

1. Reset: /run RaidLogAutoDB.combatLogReminderDismissed = false; ReloadUI()
2. Enter a raid - verify StaticPopup dialog appears
3. Click "OK, Got It" - dialog dismisses
4. Re-enter - dialog does NOT reappear (permanently dismissed)

/rla acl Command:

1. /rla acl with ACL on - shows "Advanced Combat Logging: ON"
2. /console advancedCombatLogging 0 then /rla acl - enables and confirms

Checklist

• My code follows the project's code style (4-space indent, 120 char lines)
• I have tested my changes in-game
• Luacheck reports no warnings
• My commits follow conventional commit format