[feature] W3ID: Generate Rotation Log Entry

[sosweetham]

Description

Implement the functionality to generate a new DID rotation log entry following the did:webvh JSON Lines format. This includes creating a new log entry with updated version details (version number and versionTime) and incorporating the pre-rotation parameters.

Reference

%%{init: {"theme": "default"}}%%
graph LR
    WI[W3ID Instance]
    RLE[Rotation Log Entry Generator]
    LE[New Log Entry]

    WI -->|Triggers rotation| RLE
    RLE -->|Creates new log entry with version info| LE

Loading

Acceptance Criteria

A log entry is generated on rotation with a new version identifier (e.g., “2-”).
The log entry includes proper JSON structure: versionTime, parameters (update keys and next key hashes), and state (DIDDoc data).
Automated tests confirm that the log entry output matches the expected format.