Add Aegis SDK diagnostics reporter

[El-swaggerito]

Description

Difficulty: Expert

Type: Feature

Summary

Add a diagnostics reporter for Aegis SDK configuration and runtime state.

Current Behaviour

SDK users may struggle to diagnose RPC, contract ID, network, role, signer, and compliance failures.

Expected Behaviour

The SDK should produce a safe redacted diagnostics report for support.

Suggested Implementation

Create reporter types, redaction, config checks, runtime checks, tests, and docs.

Files or Areas Likely Affected

• src/diagnostics/
• src/config/
• src/client/
• src/errors/
• tests/
• docs/

Acceptance Criteria

• Diagnostics reporter is implemented.
• Config, network, role, and signer states are represented.
• Sensitive values are redacted.
• Compliance-related failures are classified where possible.
• Tests verify redaction.
• Docs explain safe support usage.

Additional Notes

Do not expose private keys or sensitive identity data.

[Gipzy8]

Hi! I'd like to apply for this issue. I have experience with [SDK/config diagnostics, error handling, redaction of sensitive data]. My plan: build a diagnostics reporter that checks RPC, contract ID, network, role, and signer state, ensure sensitive values are redacted, classify compliance-related failures where possible, add tests verifying redaction, and document safe support usage.

[grantfox-oss]

🦊 GrantFox — @Gipzy8 has been assigned to this issue as part of the Official Campaign | FWC26 campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #149)
2. Your PR will be reviewed by the Axionvera maintainers

Good luck! Track your progress on GrantFox.