feat: support Redis operations in ODC #873

[LordofAvernus]

Summary

• Add connect-plugin-redis and schema-plugin-redis with JDBC bridge command execution.
• Route Redis schema/table access via console datasource to avoid JDBC pool timeouts.
• Add Redis schema scan helper, column metadata, and plugin unit tests.

Related

• Fixes actiontech/dms-ee#873
• Base branch: dev/4.3.4

Test plan

• mvn -pl server/plugins/connect-plugin-redis,server/plugins/schema-plugin-redis -am test
• ODC workbench executes PING/SCAN/GET/SET against Redis via DMS-synced datasource
• Full stack deployed with skills/deploy/odc/script/odc.sh start-stack