Move from dealbot subgraph to ponder

[BigLep]

Done Criteria

Instead of relying on https://github.com/FilOzone/dealbot/tree/main/apps/subgraph, we use ponder for finding anonymous pieces (meeting the needs outlined in https://github.com/FilOzone/dealbot/blob/main/apps/subgraph/README.md

Why Important

Less operations potentially of dealbot needing to rely Goldsky
Less cost since most this data is already stored/indexed in FilOzone/infra anyway for early repair.

Notes

202606 Notes from Kuba

https://filecoinproject.slack.com/archives/C08TVNKJV7C/p1782246908163489

• If we want to rely on Ponder beyond analytics, we should definitely go with an HA PostgreSQL cluster.
  • Note: this is follow on work to https://github.com/FilOzone/infra/issues/253
• My strong suggestion is to do that only in Prod and deploy both networks there, rather than using staging for calibration.
  • a single dealbot should be able to talk to both mainnet & calibration #297
• How would Dealbot use it: It would create its own ponder indexing rules, creating tables with columns that it needs. If you need stored procedures/views that can be done on top (managed outside of Ponder).
• We can probably share bits and pieces across foc-observer/early-repair/dealbot ponders, but each project wants a slightly different view of the underlying data.  So my assumption is that sharing would be limited to library code for decoding, rather than sharing tables