Allow setting levels in Target constructor

[Copilot]

Q	A
Is bugfix?	❌
New feature?	✔️
Breaks BC?	❌
Fixed issues	-

Adds $levels parameter to SyslogTarget constructor to match the base Target class API from yiisoft/log#128.

Changes:

• Added optional array $levels = [] parameter to constructor, passed to parent::__construct()
• Updated config/di.php to support optional levels parameter with safe fallback
• Added test coverage for level filtering behavior
• Updated CHANGELOG.md with entry for the new feature
• Updated yiisoft/log requirement to ^2.2 to ensure compatibility with the new constructor signature

Usage:

use Psr\Log\LogLevel;
use Yiisoft\Log\Target\Syslog\SyslogTarget;

// Filter to only log errors and warnings
$target = new SyslogTarget(
    'app',
    LOG_ODELAY | LOG_PID,
    LOG_USER,
    [LogLevel::ERROR, LogLevel::WARNING]
);

Backward compatible - defaults to empty array (all levels). Users can optionally configure levels in their own params configuration.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Allow setting levels in Target constructor</issue_title>
<issue_description>### Proposed new feature or change

See yiisoft/log#128</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Allow setting levels in Target constructor #54

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[samdark]

@copilot add a line for CHANGELOG.

[Copilot]

@copilot add a line for CHANGELOG.

Added in commit fdcc7dd

[Copilot]

Pull request overview

This PR adds support for setting log levels directly in the SyslogTarget constructor, bringing it in line with the base Target class API from yiisoft/log#128. This allows developers to filter log levels at instantiation time rather than only through configuration.

Key changes:

• Added optional $levels parameter to SyslogTarget constructor that passes to parent
• Updated configuration examples to demonstrate the new levels parameter
• Added comprehensive test coverage for level filtering functionality

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/SyslogTarget.php	Added optional $levels parameter to constructor with proper documentation
tests/SyslogTargetTest.php	Added test case testConstructorWithLevels() to verify level filtering behavior
config/params.php	Added commented example showing how to configure levels in parameters
config/di.php	Updated DI configuration to support optional levels parameter with fallback
README.md	Enhanced documentation with $levels parameter description and usage example
CHANGELOG.md	Added entry documenting the new feature

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[vjik]

Version yiisoft/log in composer.json should be updated after yiisoft/log release.

[samdark]

@copilot require yiisoft/log ^2.2

[Copilot]

@copilot require yiisoft/log ^2.2

Updated in commit 7848e9b