* it compiles
* refactored
* reduce to 4 concurrent chunk upload
* CopyObjectPartHandler
* copy a range of the chunk data, fix offset size in copied chunks
* Update s3api_object_handlers_copy.go
What the PR Accomplishes:
CopyObjectHandler - Now copies entire objects by copying chunks individually instead of downloading/uploading the entire file
CopyObjectPartHandler - Handles copying parts of objects for multipart uploads by copying only the relevant chunk portions
Efficient Chunk Copying - Uses direct chunk-to-chunk copying with proper volume assignment and concurrent processing (limited to 4 concurrent operations)
Range Support - Properly handles range-based copying for partial object copies
* fix compilation
* fix part destination
* handling small objects
* use mkFile
* copy to existing file or part
* add testing tools
* adjust tests
* fix chunk lookup
* refactoring
* fix TestObjectCopyRetainingMetadata
* ensure bucket name not conflicting
* fix conditional copying tests
* remove debug messages
* add custom s3 copy tests
* add a menu item "Message Queue"
* add a menu item "Message Queue"
* move the "brokers" link under it.
* add "topics", "subscribers". Add pages for them.
* refactor
* show topic details
* admin display publisher and subscriber info
* remove publisher and subscribers from the topic row pull down
* collecting more stats from publishers and subscribers
* fix layout
* fix publisher name
* add local listeners for mq broker and agent
* render consumer group offsets
* remove subscribers from left menu
* topic with retention
* support editing topic retention
* show retention when listing topics
* create bucket
* Update s3_buckets_templ.go
* embed the static assets into the binary
fix https://github.com/seaweedfs/seaweedfs/issues/6964
* rename
* set agent address
* refactor
* add agent sub
* pub messages
* grpc new client
* can publish records via agent
* send init message with session id
* fmt
* check cancelled request while waiting
* use sessionId
* handle possible nil stream
* subscriber process messages
* separate debug port
* use atomic int64
* less logs
* minor
* skip io.EOF
* rename
* remove unused
* use saved offsets
* do not reuse session, since always session id is new after restart
remove last active ts from SessionEntry
* simplify printing
* purge unused
* just proxy the subscription, skipping the session step
* adjust offset types
* subscribe offset type and possible value
* start after the known tsns
* avoid wrongly set startPosition
* move
* remove
* refactor
* typo
* fix
* fix changed path