Pagination for console out

[CheatCod]

Description

-[ ] Build a mock end point that sends test data that complies with the interface described

• rework the frontend console code to work with this API
• Create a new table to map console output messages from UUID to a vec of events
• Build rust handler to query the table:

struct Query {
    instance_uuid : String,
    start_snowflake_id : i64,
    count : i64,
}

• Remove the old ring buffer from backend

[CheatCod]

Note: needs to investigate if frontend can know the snowflake ID of the last message on the current page

[CheatCod]

for backend: ask Peter (me)
for frontend: ask Kevin Huang (ynng)