Experiment with a Subduction-only implementation

[LilithSilver]

Currently, we rely on Samod -- which isn't getting on subduction any time soon, due to its sans-io implementation.

We should experiment with using Subduction directly.

[LilithSilver]

Used Samod APIs:

• Dialer/Acceptor API: Handles server connection/reconnection for us

  • DialerEvents to update frontend with server state
  • We used to do this more manually, so not a huge deal to remove, but it makes it very convenient

• DocHandle acquisition and tracking

  • DocumentIds
  • DocHandle.changes to get a stream of document change events
  • DocHandle.with_document to modify the document
  • Repo.find to acquire a DocHandle
  • Soon: repo.search, from here Add search API alexjg/samod#95 to avoid constant document polling for docs that haven't synced up to the server yet with Repo.find

• Repo setup

  • ConcurrencyConfig to define a Rayon threadpool
  • TokioFilesystemStorage

• Peer stream and ConnectionInfo

  • Repo.connected_peers to get a stream of peer info changes, and last acknowledged heads etc