Enhance node status tracking and expand status dimensions for workers and APIs

[pseudoyu]

What feature is it?

1. need more status dimensions of node
2. need a status dashboard/static page for operators

What problem does this feature solve?

We only have few node status monitoring and alerting data for operators.

Additional description

No response

This is not a duplicated feature request or new worker proposal

• [X] I have searched existing issues to ensure this feature has not already been requested and this is not a New Worker.

[pseudoyu]

TODOs:

• [x] current public address
• [x] current DSL parameters
• upcoming DSL parameter changes
• [x] recent GI heartbeat
• [x] recent requests
• [x] recent rewards
• [x] recent slashing
• [ ] ...

[HenryQW]

• [x] Node uptime (to be discussed)
• [x] Node coverage

[pseudoyu]

• [x] index count
• [x] indexing progress
• [x] worker status