Feat ICP Context contract

[alenmestrov]

Created ICP Version of Context Contract

Summary

This PR adds the Internet Computer (ICP) implementation of the context-config contract, mirroring the existing NEAR implementation.

Changes

New Implementation

• Added ICP-specific contract implementation using Candid types.
• Implemented core types matching NEAR's structure:
  • Base ICIdentity wrapper for 32-byte arrays.
  • Identity types: ICSignerId, ICContextIdentity, ICContextId.
  • Application types: ICApplication, ICApplicationId, ICBlobId.
  • Request types: Request, ContextRequest, ContextRequestKind.
  • Capability management: ICCapability.

Integration Tests

• Added comprehensive test suite covering:
  • Basic context operations.
  • Member management.
  • Capability management.
  • Edge cases and timestamp scenarios.
  • Concurrent operations.

Compatibility

• Ensures compatibility with NEAR implementation through proper type conversions.
• Maintains consistent behavior across both platforms.

Testing

• All tests pass in the local ICP test environment (PocketIC).

Build and Test Instructions

1. Prerequisites:

• Ensure that DFX is installed.

• Add candid-extractor cargo add candid-extractor for generation of .did file

2. Build Script: Use the provided build.sh script to build, deploy, and prepare the contract for local testing.

   • The script performs the following steps:

     • Checks that device has wasm32 target installed
     • Builds the wasm contract
     • Generates .did file based on contract
     • Stops the local environment (if its not running it doesn't do anything)
     • Starts the local environment
     • Deploys the contract

3. Run Tests: Execute the following command to build and run the integration tests:

   ./build.sh && cargo test --test integration -- --nocapture

Notes

• To be able to test the contract you will need to download and add pocket-ic in the context-config folder
• Currently, deployment and update of the proxy contract is not implemented, this will be done after finalization of Proxy Contract

[frdomovic]

Add this requirement for building and deploying the contract - https://crates.io/crates/candid-extractor