it11d: finalize doc pack with viewer screenshots + updated ops flows

[rinfa0108]

IT11D (Finalize) - Doc Pack with Viewer Screenshots + Updated Flows

Summary

Finalizes the OpenBrain documentation pack (Markdown + Word) with viewer screenshot assets, onboarding flow updates that include viewer validation, and operational guidance for re-embed + coverage.

Screenshots added

• docs/pack/assets/viewer/viewer-01-connection-token.png
• docs/pack/assets/viewer/viewer-02-workspace-info.png
• docs/pack/assets/viewer/viewer-03-audit-object-timeline.png
• docs/pack/assets/viewer/viewer-04-audit-memory-key.png
• docs/pack/assets/viewer/viewer-05-audit-actor-activity.png
• docs/pack/assets/viewer/viewer-06-retention-policy.png
• docs/pack/assets/viewer/viewer-07-object-inspector.png
• docs/pack/assets/viewer/viewer-08-deny-explainability.png
  (All token values are redacted.)

Docs updated

• docs/pack/OpenBrain_Operations_Runbook.md (+ .docx)
• docs/pack/OpenBrain_Feature_Inventory.md (+ .docx)
• docs/pack/OpenBrain_Enterprise_Spec.md (+ .docx)
• docs/pack/README.md

Scope confirmation

• Docs and image assets only in this branch commit.
• README identity blocks were not modified.

Gates

== Tool Versions ==
rustc 1.93.0 (254b59607 2026-01-19)
cargo 1.93.0 (083ac5135 2025-12-15)
cargo-deny 0.19.0
gitleaks 8.30.0
== Rust Gates ==
compile errors present in crates/openbrain-server/src/main.rs (sqlx unresolved + deny_error_with_rule arg mismatch)
== Dependency Security/Policy ==
advisories ok
bans ok, licenses ok, sources ok
== Secret Scan ==
gitleaks: no leaks found