Add Custom Detection Patterns for Subdirectories After Domain (e.g., blog.livedoor.jp)

The Japanese blog site **blog.livedoor.jp** uses the same main domain for numerous different blogs, but the actual articles and advertising content can vary significantly between them. Recently, there has been an increase in reports related to AdShield on this domain.

However, because all these blogs share the same domain (**blog.livedoor.jp**), they are not currently distinguished in the detection and reporting system. This limitation makes it difficult to address issues specific to individual blogs hosted under the main domain.

It would be beneficial to customize the detection patterns to differentiate URLs based on the path after the domain.
For example:
`blog.livedoor.jp/diet2channel`
`blog.livedoor.jp/nanjstu`

By allowing detection patterns that recognize subdirectories or paths after the domain, we can more accurately identify and address issues specific to each blog.

It helps in precisely targeting and resolving issues for specific sub-sites under a shared domain.
This enhancement could also benefit other websites with similar structures, such as reports of Google's websites, where different content exists under the same main domain.