[imagodei/sovereignty] Complete sovereignty.service.ts test coverage (8.6% → 80%)

[EthosengineBot]

Context

Currently sovereignty.service.ts has only 8.6% test coverage despite being a core service for tracking user sovereignty stages.

Gap Analysis

The service has computed signals for:

• Sovereignty stage detection (visitor → hosted → app-user → node-operator)
• Connection status mapping from Holochain state
• Data residency computation
• Key information generation

Acceptance Criteria

• Test sovereignty stage detection logic
• Test connection status mapping (local vs remote conductor)
• Test data residency computation for each stage
• Test key information generation
• Test node operator detection logic
• Coverage reaches 80%+

Estimated Effort

2-3 hours

Files

• src/app/imagodei/services/sovereignty.service.ts
• src/app/imagodei/services/sovereignty.service.spec.ts (create)

Priority Justification

HIGH - Sovereignty tracking is core to the Elohim identity model and affects user experience across stages.

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Created by quality-deep orchestrator - Sprint 3