feat: update commonware to 2026.5.0

[matthias-wright]

Builds on #440.

Core Changes:

• Bumps all commonware crates from 2026.4.0 to 2026.5.0.
• Applies the API updates.
• Updates the syncer with the recent marshal changes, specifically:
  • Introduces new modules:
    • floor.rs: processed floor as (height, round); all fetches gated by fetch_if_permitted, denying at/below either floor.
    • stream.rs: durable application-progress cursor (last acked height).
    • acks.rs: FIFO pipeline of in-flight application acks, capped by max_pending_acks.
    • delivery.rs: parsed deliveries held for batch certificate verification.
  • Uses the new commonware-actor crate to rebuild the mailbox.
  • Resolver now attaches a local annotation to each fetch which contains information about if the fetch is for a Notarization/Certified/Finalized and the corresponding round/height. This information can be used when processing the response, for example for discarding stale data.
  • Resolver no longer blocks on delivery.
  • The actor.rs run loop is now select_loop! with arms ordered.
  • Notarization arm no longer eagerly fetches a missing block

This update also fixes #357, #356, and #346.