Add Exodus workroom demo integration report

[mdheller]

Implements Phase 3 of #478 for the Sociosphere side of the governed Exodus Migration Workroom demo.

Scope:

• add reports/exodus-workroom-demo.integration-v0.md
• add reports/exodus-workroom-demo.integration-v0.json

What this records:

• Exodus PR Add FIPS 140-2/140-3 compliance artifacts: guide, zero-trust bindings, TriTRPC spec, and compliance checker #18 is merged and provides the synthetic Apple/Google/Microsoft exit-readiness run fixture, schema, validator, CI, and demo docs.
• Prophet Workspace PR Add Repository Intelligence & DevOps Orchestration System #20 is merged and provides the Professional Workroom bridge, bridge example, workroom example, validator coverage, and docs.
• Sociosphere records the demo chain as durable control-plane state and keeps the proof boundary explicit.

Non-goals:

• no workspace manifest membership edits
• no pin/ref movement
• no resolved-lock regeneration
• no provider credential collection
• no runtime connector activation
• no production migration claim
• no UI readiness claim

Related:

• Exodus Migration Workroom demo v0 #478
• Add synthetic Exodus Migration Workroom demo fixture exodus#18
• Add Exodus Migration Workroom bridge prophet-workspace#20