feat(issuance): reissue credentials manually

[florishafkenscheid]

Description of change

Adds manual credential reissuance support for ssi-agent. This introduces reissuance relation records, domain commands/events/views, a reissuance service with policy hook support, HTTP endpoints to create and query credential reissuances, event publisher coverage, store wiring, and regenerated OpenAPI output.

The change allows an existing SD-JWT credential to be reissued by preparing a new unsigned credential and credential offer while preserving a relation back to the original credential.

Links to any relevant issues

N/A

How the change has been tested

Tested locally with:

cargo test reissuance

This covered:

• reissuance aggregate creation and duplicate protection
• noop reissuance policy behavior
• service validation for missing originals, invalid payloads, and unsupported formats
• SD-JWT and VC SD-JWT reissuance preparation
• HTTP create/list/get reissuance endpoints
• issuing the reissued credential through the OID4VCI credential endpoint

Definition of Done checklist

• I have followed the contribution guidelines for this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have successfully tested this change in a docker environment

[codecov-commenter]

Codecov Report

❌ Patch coverage is 89.76487% with 74 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
agent_api_http/src/v0/issuance/error.rs	0.00%	36 Missing ⚠️
agent_api_http/src/v0/issuance/reissuance.rs	94.69%	18 Missing ⚠️
agent_issuance/src/reissuance/service.rs	96.99%	7 Missing ⚠️
agent_issuance/src/reissuance/event.rs	0.00%	6 Missing ⚠️
agent_event_publisher_nats/src/lib.rs	0.00%	3 Missing ⚠️
agent_issuance/src/state.rs	0.00%	2 Missing ⚠️
agent_issuance/src/reissuance/aggregate.rs	97.77%	1 Missing ⚠️
agent_store/src/lib.rs	95.00%	1 Missing ⚠️

Files with missing lines	Coverage Δ
agent_api_http/src/v0/issuance/mod.rs	100.00% <100.00%> (ø)
agent_event_publisher_http/src/lib.rs	57.24% <100.00%> (+0.63%)	⬆️
agent_issuance/src/lib.rs	100.00% <ø> (ø)
agent_issuance/src/reissuance/policy.rs	100.00% <100.00%> (ø)
...t_issuance/src/reissuance/views/all_reissuances.rs	100.00% <100.00%> (ø)
agent_issuance/src/reissuance/views/mod.rs	100.00% <100.00%> (ø)
agent_issuance/src/reissuance/aggregate.rs	97.77% <97.77%> (ø)
agent_store/src/lib.rs	78.43% <95.00%> (+5.81%)	⬆️
agent_issuance/src/state.rs	43.47% <0.00%> (-1.78%)	⬇️
agent_event_publisher_nats/src/lib.rs	30.50% <0.00%> (-1.08%)	⬇️
... and 4 more

... and 6 files with indirect coverage changes

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[Copilot]

Copilot reviewed 19 out of 19 changed files in this pull request and generated no comments.