[dhfang]

• Adds a Packets RPC listing packets the relayer knows about filterable by chain, client, state, source transaction, and sequence. Paginated.
• Adds ibc relayer packets
• Removes Status along with ibc relayer status

closes FOU-1218

[greptile-apps]

Greptile Summary

The PR replaces the transaction-scoped Status RPC and CLI command with a filtered, cursor-paginated Packets endpoint.

• Adds packet filters, page limits, opaque cursors, state projection, and CLI support including multi-page output.
• Adds equivalent SQLite and PostgreSQL packet-listing queries plus a source-transaction index.
• Updates the E2E harness to query packet listings when observing relay progress.

Confidence Score: 4/5

The sequence-filter narrowing should be fixed before merging because valid wire values can be silently applied as different database values; the E2E pagination gap is also worth correcting.

The new endpoint forwards an unrestricted uint64 sequence into a signed database parameter without validation, while the E2E compatibility helper does not preserve its all-statuses behavior for transactions spanning multiple pages.

Files Needing Attention: link/internal/store/store.go and e2e/internal/harness/ibclink/daemon.go

Important Files Changed

Filename	Overview
link/internal/service/relayer/service.go	Implements packet filter normalization, state expansion, bounded cursor pagination, and packet-status projection; sequence range validation is missing before persistence conversion.
link/internal/store/queries/relayer.sql	Adds the shared SQLite/PostgreSQL filtered packet query with descending keyset pagination.
link/internal/store/store.go	Adds packet-listing domain filters and paging helpers, but silently narrows the public uint64 sequence filter to int64.
link/internal/server/relayer_handler.go	Converts optional wire filters into service filters and maps packet pages and invalid input to the Connect API.
proto/link/relayer.proto	Replaces Status with the filtered, paginated Packets wire contract.
link/cmd/ibc/relayer.go	Adds packet filter flags and supports either one-page output or cursor traversal with --all.
e2e/internal/harness/ibclink/daemon.go	Migrates E2E status observation to Packets, but its transaction-status helper reads only the first bounded page.

Sequence Diagram

sequenceDiagram
  participant Client
  participant Handler as Packets RPC
  participant Service as Relayer Service
  participant Store as SQLite/Postgres
  Client->>Handler: Packets(filter, limit, cursor)
  Handler->>Service: Packets(PacketFilter, PacketQuery)
  Service->>Service: Validate filters and decode cursor
  Service->>Store: ListPackets(filters, before, limit+1)
  Store-->>Service: Rows ordered by id DESC
  Service-->>Handler: Packets, has_more, next_cursor
  Handler-->>Client: PacketsResponse

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_{Reviews (1): Last reviewed commit: "trim comments across the packets endpoin..." | Re-trigger Greptile}

[dhfang]

closes FOU-1218

[linear-code]

FOU-1218

[gjermundgaraba]

Just a bunch of small stuff for the most part.