feat: Add a random article method to the post finder

[HowieHz]

What type of PR is this?

/area core
/kind feature

What this PR does / why we need it:

为 postFinder 添加 随机文章方法

Which issue(s) this PR fixes:

Fixes #7327

Special notes for your reviewer:

Does this PR introduce a user-facing change?

为 postFinder 添加 随机文章方法

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[HowieHz]

相关 pr #7471

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[HowieHz]

相关 pr #7471

尝试按照 #7471 (comment) 描述实现。
我希望有大神能把这个改为类似 list({...})。
即 Flux<ListedPostVo> random(Map<String, Object> params) 可传入 limit 还有 tagName、categoryName、ownerName 。

🫶

[JohnNiang]

Hi @HowieHz , thank you for your contribution!

I will move this PR into Halo 2.22.0 milestone due to possibly refactoring index mechanism.

/milestone 2.22.x

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud