[pavog]

Bukkit servers are detected by their startup line, built as PREFIX This server is running <logIdentifier>.
Paper, Purpur and Folia added a second identifier with a top-level |, which turned the pattern into two alternatives:

/PREFIX This server is running (?:Paper|CraftBukkit) version git-Paper|This server is running Paper version/

The second alternative has no prefix, so This server is running Paper version anywhere in a log was enough to detect it as Paper.
Current versions (Paper version 1.21.1-116-master@e7e1ab5) were only detected through that alternative.

This PR replaces the $logIdentifier string with a $logIdentifiers array and creates one prefixed detector per identifier.
Paper, Purpur and Folia now list the old CraftBukkit version git-... name and their own ... version name as separate entries.

This depends on #: Paper 26.3 console logs only keep their detection because the prefix now matches [16:24:27 INFO]: .

No expected output changed, all test logs are detected as before.
There is no test log for an unprefixed version line, because none of the real logs has one.

Changes

• replace $logIdentifier with $logIdentifiers and create one prefixed detector per entry
• split the paper, purpur and folia identifiers into the craftbukkit name and their own name
• add docblocks with example startup lines