Initialize Decode Module

[Emrys02]

Create the foundational module structure for the decode engine at crates/core/src/decode/. This module will house all Tier 1 error classification, host error mapping, and diagnostic report generation.

Implementation Guidelines

• Create crates/core/src/decode/mod.rs with submodules: host_error.rs, diagnostic.rs, report.rs, context.rs
• Add pub mod decode; to crates/core/src/lib.rs and re-export primary types

Expectations

• What done looks like: use prism_core::decode; compiles and the module tree shows in cargo doc.

[vicistar-star]

@vicistar-star has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

I’d like to work on this issue because establishing a clean and extensible module architecture early is important for maintainability and future feature development, especially in systems focused on diagnostics and error classification. I have experience working with Rust crate organization, module design, and public API structuring, including creating scalable internal module trees, managing re-exports, and ensuring documentation visibility through cargo doc. I’m comfortable setting up the foundational decode module structure, wiring it cleanly into lib.rs, and organizing the codebase in a way that supports future expansion for host error mapping, diagnostics, and reporting functionality.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @vicistar-star to this issue.

[drips-wave]

Congratulations, @vicistar-star! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @vicistar-star: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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🌊 Happy Wave 🌊

[drips-wave]

This issue has been completed by @vicistar-star as part of the Stellar Wave Program's 5th Wave 🥳

😎 @vicistar-star: You earned 150 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

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