refactor: log module from logrus to log/slog with multi-handler architecture

[Copilot]

Closes goravel/goravel#535

Changes Made

Contracts (contracts/log/)

• level.go: Custom levels (LevelPanic, LevelFatal) defined relative to slog.Level, implements slog.Leveler interface
• log.go: Removed Hook interface; Logger.Handle() now returns log.Handler; added Hook to Handler adapter for backward compatibility

Implementation (log/)

• application.go: Uses slog-multi.Fanout() for multi-handler support
• writer.go: New slog-based writer (replaces logrus_writer.go)
• logger/handler.go: IOHandler and ConsoleHandler implementing log.Handler
  • Format timestamp using carbon (ToDateTimeMilliString)
  • Only print [With] and [Tags] sections when they have entries
  • ConsoleHandler accepts level parameter from configuration
• logger/single.go, daily.go: Return log.Handler instead of logrus.Hook; export GetLevelFromString

Tests

• Comprehensive unit tests for log/logger/handler.go, single.go, daily.go
• Unit tests for log/entry.go and log/utils.go using testify suite
• Table-driven test cases for telemetry handler tests
• Entry field tests with specific content assertions for all fields (Code, Context, Domain, Hint, Owner, Request, Response, Tags, User, With)

Removed

• log/hook.go, log/formatter/general.go
• mocks/log/Hook.go

Dependencies

• Added: github.com/samber/slog-multi
• Removed: github.com/sirupsen/logrus, github.com/rifflock/lfshook

---

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[devhaozi]

@copilot 然后这些功能现在是不是用不了了？
写入特定通道
有时，你可能希望将消息记录到应用程序默认频道以外的频道：

facades.Log().Channel("single").Info(message)
如果你想同时写入多个通道，可以使用 Stack 方法：

facades.Log().Stack([]string{"single", "slack"}).Info(message)

Goravel 提供有便捷的链式方式，方便在日志中插入更多有用信息：

facades.Log().User("John").Debug(message)
Method Action
Code 设置日志代码。
Hint 设置提示，方便调试。
In 设置日志相关的分类。
Owner 设置日志归属人。
Request 记录 Request。
Response 记录 Response。
Tags 为日志添加标签。
User 记录触发日志的用户。
With 为日志附加数据。
WithTrace 为日志附加堆栈信息。

用不了的话得加回去

[Copilot]

@copilot 然后这些功能现在是不是用不了了？
写入特定通道
有时，你可能希望将消息记录到应用程序默认频道以外的频道：...

这些功能都还能用：

1. Channel() - 在 application.go 第 58-71 行实现
2. Stack() - 在 application.go 第 73-94 行实现
3. 所有链式方法 (Code, Hint, In, Owner, Request, Response, Tags, User, With, WithTrace) - 全部在 writer.go 第 120-177 行实现

测试都通过了，包括专门针对这些方法的测试用例（如 TestWriter/Code, TestWriter/Hint 等）。

[devhaozi]

@copilot 还有一点需要重构的：CustomDriver之类的都重构为DriverCustom，DebugLevel之类的都重构为LevelDebug

[devhaozi]

@copilot 改完不用测试了，提交更改吧

[codecov]

Codecov Report

❌ Patch coverage is 89.40678% with 50 lines in your changes missing coverage. Please review.
✅ Project coverage is 69.99%. Comparing base (c4009cf) to head (64aa876).
⚠️ Report is 29 commits behind head on master.

Files with missing lines	Patch %	Lines
log/application.go	70.83%	16 Missing and 5 partials ⚠️
log/logger/handler.go	74.32%	18 Missing and 1 partial ⚠️
log/logger/single.go	71.42%	2 Missing and 2 partials ⚠️
log/logger/utils.go	92.30%	1 Missing and 1 partial ⚠️
log/writer.go	98.03%	1 Missing and 1 partial ⚠️
log/logger/daily.go	90.90%	1 Missing ⚠️
telemetry/instrumentation/log/handler.go	80.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1302      +/-   ##
==========================================
+ Coverage   69.41%   69.99%   +0.58%     
==========================================
  Files         282      282              
  Lines       16630    16659      +29     
==========================================
+ Hits        11543    11660     +117     
+ Misses       4596     4511      -85     
+ Partials      491      488       -3     

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[devhaozi]

LGTM

[Copilot]

@copilot Please consider the comments above and solve them.

Addressed in 04da2a6:

• Format timestamp using carbon.FromStdTime().ToDateTimeMilliString() instead of UnixMilli
• Fix empty [With] map[] and [Tags] [] by checking length before printing
• ConsoleHandler now accepts level parameter from configuration
• Add comprehensive Entry field tests (TestHandleWithAllFields, TestHandleEmptyOptionalFields)
• Replace Maybe() with specific Times() or Once() expectations in application_test.go

[devhaozi]

@hwbrzzl PTAL

[hwbrzzl]

LGTM, only two nitpicks.

[hwbrzzl]

Yes, but it's required I think.

[hwbrzzl]

Awesome, LGTM 💯