fix: envio indexer config + separate per-reader checkpoint tracking

[otsybizov]

🤖 Linear

Closes CONG-XXX

[Copilot]

Pull request overview

This PR updates the Envio indexer configuration to capture gasLimit and refactors Cartographer/Subgraph reading to track and persist checkpoints per reader implementation (e.g., Goldsky vs Envio), with corresponding test updates.

Changes:

• Add gasLimit capture in the Envio indexer (field_selection, event handler metadata extraction, and GraphQL schema fields).
• Introduce per-reader checkpoint load/save utilities and update Cartographer operations to use reader-specific cursors.
• Extend the subgraph adapter composite reader to return merged results along with per-reader checkpoint updates; update unit tests/mocks accordingly.

Reviewed changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
packages/indexer/src/EventHandlers.ts	Populate gasLimit from transaction metadata.
packages/indexer/schema.graphql	Expose gasLimit on multiple entities for parity.
packages/indexer/config.yaml	Include gasLimit in Envio transaction_fields selection.
packages/agents/cartographer/poller/test/mock.ts	Update subgraph adapter mocks for new *WithCheckpoints APIs and reader types.
packages/agents/cartographer/poller/test/lib/operations/monitor.spec.ts	Adjust monitor tests for per-reader checkpoint calls.
packages/agents/cartographer/poller/test/lib/operations/invoices.spec.ts	Adjust invoice/deposit tests for per-reader checkpoint saving semantics.
packages/agents/cartographer/poller/test/lib/operations/intents.spec.ts	Update intents tests to use new checkpoint-returning reader APIs.
packages/agents/cartographer/poller/test/lib/operations/depositors.spec.ts	Update depositor tests for per-reader checkpoints.
packages/agents/cartographer/core/src/operations/monitor.ts	Use per-reader checkpoints for message polling and persistence.
packages/agents/cartographer/core/src/operations/invoices.ts	Use per-reader checkpoints for hub invoices/deposits operations.
packages/agents/cartographer/core/src/operations/intents.ts	Use per-reader checkpoints for origin/destination/settlement intents and orders.
packages/agents/cartographer/core/src/operations/helper.ts	Treat domains as supported if Envio is available (in addition to Goldsky URLs).
packages/agents/cartographer/core/src/operations/depositors.ts	Use per-reader checkpoints for depositor event ingestion.
packages/agents/cartographer/core/src/operations/checkpoints.ts	New helper module to load/save checkpoints keyed by reader type.
packages/adapters/subgraph/src/reader.ts	Add readerType, add *WithCheckpoints APIs, and implement per-reader checkpoint merging helpers.
packages/adapters/subgraph/src/lib/types/subgraph.ts	Introduce ReaderCheckpoints type.
packages/adapters/subgraph/src/graph/reader.ts	Set Graph reader readerType to goldsky.
packages/adapters/subgraph/src/envio/reader.ts	Set Envio reader readerType to envio.

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