feat(utxorpc): add block to WatchTx

[nelsonksh]

Summary by CodeRabbit

• New Features
  • Transaction watch stream now includes the full originating block with each event, providing richer context for consumers.
  • Cardano block data and native serialized bytes are embedded alongside transactions to improve traceability and analysis.
  • Backward-compatible: existing clients continue to work while receiving additional block information for more comprehensive processing.

[coderabbitai]

Walkthrough

The change updates block_to_txs in src/serve/grpc/watch.rs to populate AnyChainTx.block with a constructed AnyChainBlock (native_bytes from the block body and chain = Cardano with CBOR via mapper.map_block_cbor(body)). Previously block was None. No public signatures changed.

Changes

Cohort / File(s)	Summary
gRPC watch: enrich AnyChainTx with block src/serve/grpc/watch.rs	Populate AnyChainTx.block with AnyChainBlock (native_bytes from body; chain = Cardano(mapper.map_block_cbor(body))). Replaces prior None placeholder. No signature or public API changes.

Sequence Diagram(s)

sequenceDiagram
    participant Source as Chain Source
    participant Watch as Watcher (block_to_txs)
    participant Map as Mapper
    participant GRPC as gRPC Server
    participant Client as Client

    Source->>Watch: Emit block body
    rect rgb(235,255,235)
    note over Watch: New behavior — embed block
    Watch->>Map: map_block_cbor(body)
    Map-->>Watch: block_cbor
    Watch->>Watch: Build AnyChainBlock(native_bytes, chain=Cardano(block_cbor))
    Watch->>GRPC: AnyChainTx{ tx, block: Some(AnyChainBlock) }
    GRPC-->>Client: Stream AnyChainTx with block populated
    end

    rect rgb(245,245,245)
    note over Watch: Prior behavior — no block
    Watch->>GRPC: AnyChainTx{ tx, block: None }
    GRPC-->>Client: Stream AnyChainTx without block
    end

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Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

I nibbled bytes from Cardano’s stream,
Lifted a body into a blocky dream;
CBOR crumbs tucked neat inside,
Now transactions travel with a guide—
Thump-thump! my paws applaud the tweak,
Blocks ride along whenever clients peek. 🥕✨

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	You can run @coderabbitai generate docstrings to improve docstring coverage.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title Check	✅ Passed	The title succinctly captures the main change of embedding a block into WatchTx within the utxorpc service, matching the internal update that populates the block field in the returned transactions.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between af80f39 and 2469b06.

📒 Files selected for processing (1)

• src/serve/grpc/watch.rs (2 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• src/serve/grpc/watch.rs

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Actionable comments posted: 1

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between ee4e732 and af80f39.

📒 Files selected for processing (1)

• src/serve/grpc/watch.rs (1 hunks)