Configure grpc max dump history

[nicolasLuduena]

This pull request introduces a configurable limit for the maximum number of history items that can be dumped via the gRPC sync service, replacing the previous hardcoded value. The configuration can now be set via the GrpcConfig struct, and the relevant logic and tests have been updated accordingly.

Configuration Improvements:

• Added an optional max_dump_history_items field to the GrpcConfig struct, allowing the maximum number of dump history items to be set via configuration.
• Updated the gRPC server startup logic in src/serve/grpc/mod.rs to read the new configuration value, defaulting to 100 if not set, and to pass it to the sync service implementation.

Sync Service Logic Updates:

• Removed the hardcoded MAX_DUMP_HISTORY_ITEMS constant in src/serve/grpc/sync.rs and instead made the limit a field of the SyncServiceImpl struct, set via its constructor.
• Updated the validation logic in the sync service to use the configurable max_history_items value when checking requests, and improved the error message to reflect the dynamic limit.

Test Adjustments:

• Updated tests in src/serve/grpc/sync.rs to use the new constructor for SyncServiceImpl that accepts the configurable limit, and to validate the new behavior.

Summary by CodeRabbit

New Features

• Added configuration option for the gRPC service's maximum history retention limit, allowing users to customize the setting with a default of 100 items.

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[coderabbitai]

📝 Walkthrough

Walkthrough

A new optional configuration field enables per-instance customization of the gRPC dump history limit, replacing the previous hard-coded constant. The value defaults to 100 when not specified and propagates from initialization through the SyncServiceImpl struct.

Changes

Cohort / File(s)	Summary
gRPC Dump History Configurability crates/core/src/config.rs, src/bin/dolos/init.rs, src/serve/grpc/mod.rs, src/serve/grpc/sync.rs	Added max_dump_history_items: Option<u32> field to GrpcConfig; threaded the configuration value through initialization (defaulting to 100); stored it as an instance field in SyncServiceImpl and replaced hard-coded MAX_DUMP_HISTORY_ITEMS constant usage with the configurable instance value in validation logic.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Poem

🐰 A limit once carved in stone,
Now hops freely, fully own'd—
Config fields bloom, green and bright,
Threading values left and right! 🌱

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 28.57% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The pull request title 'Configure grpc max dump history' clearly and directly summarizes the main change—making the gRPC maximum dump history configurable instead of hardcoded.

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✨ Finishing touches

• 📝 Generate docstrings

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