Collect and archive RSS posts based on workflow periodicity

[hyponet]

• Introduced API support for configuring Source Plugin in the Controller layer.
• Implemented periodic querying and triggering of workflows based on plugin labels.
• Expanded support for collecting additional metadata during RSS collection, aiming to retain as much data as possible. Workflow-collected metadata can now be stored in database.
• Added hidden plugin JSON files in the source folder to provide supplementary context.
• When collecting RSS feeds, the collection records are saved in the supplementary context. Only new articles that have not been collected before are targeted for collection.
• Enhanced workflow target rules to support filtering by file extensions (triggering for any format supported by docloader).
• The request in a workflow can pass down properties from the parent entry (only if the parent contains specific fields, AI will be triggered).
• Added support for enabling/disabling feed through xattr: a label is added to Group Entry.
• Enabled cron support in workflows and re-register with the cron handler after starting.
• Added an "encoded" flag to the extend field behind xattr to differentiate between whether it has been base64 encoded. Auto decode when performing a match.
• Remove aliyun driver support