feat: FEAT-EXTERNAL-DATASET-LINKAGE — InvenioRDM dataset discovery and linkage

[sven1103-agent]

Summary

Introduces the FEAT-EXTERNAL-DATASET-LINKAGE feature, enabling users to discover, link, and synchronize external datasets hosted on InvenioRDM instances (Zenodo, FDAT) with their DataManager projects and experiments.

Changelog

Added Requirements

Requirement ID	Domain	Title
AUTH-R-01	AUTH	InvenioRDM OAuth2 Authentication
DATA-R-04	DATA	External Dataset Discovery and Linkage
DATA-R-05	DATA	Linked Dataset Metadata Synchronization
FAIR-R-01	FAIR	FAIR Signposting Bidirectional Linkage
PROJECT-R-01	PROJECT	Experiment-Level External Dataset Association

Added Feature

• FEAT-EXTERNAL-DATASET-LINKAGE — tracked in docs/features.md with draft story backlog for team refinement.

Modified Documents

• docs/requirements.md — Added 5 new requirements across AUTH, DATA, FAIR, and PROJECT domains.
• docs/features.md — Added feature description with draft story backlog (FEAT-EXT-DATA-01 through FEAT-EXT-DATA-06).
• docs/prd.md — Added external dataset linkage to in-scope items, success metrics, technical constraints, and open questions.

Scope / Boundaries

In scope:

• OAuth2 authentication with InvenioRDM instances (Zenodo, FDAT)
• Public dataset search across configured InvenioRDM instances
• "My datasets" search for authenticated users' private datasets
• One-to-many linkage (DM project → multiple external datasets)
• Experiment-level linkage with inheritance to parent project
• Live metadata synchronization for linked datasets
• Bidirectional FAIR Signposting (DM project URL recorded in InvenioRDM metadata)

Out of scope (for this Feature):

• Dataset creation/upload on InvenioRDM from within DataManager
• Many-to-many linkage (deferred to future evaluation)
• Raw data file transfer between InvenioRDM and DataManager
• Support for non-InvenioRDM repository platforms

Next Steps

1. Team review and refinement of requirements.
2. Creation of GitHub Feature issue using .github/ISSUE_TEMPLATE/feature.yml.
3. Approval of draft stories and assignment of stable Story IDs.
4. Breakdown into Tasks referencing stable Story IDs.

---

Type: Feature / Requirements
Stakeholder Reference: docs/feature-vision-associated-datasets.md

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud