Chore/project final pass

[AAdewunmi]

Summary

Final project pass for ReturnHub across documentation, dashboards, role-aware navigation, and case workflow wiring.

Changes

• Updated README documentation, badges, and repository map.
• Fixed role-specific login/session isolation and POST-based sign-out.
• Added admin user management and health/release panels.
• Added ops ML insights panel and high-risk case CTA.
• Wired ops console cases into /ops/<case_id>/ workspaces.
• Added customer evidence upload and scoped customer case navigation.
• Added merchant case queue, response upload workflow, and scoped merchant navigation.
• Added return links back to the correct role console.

Behavior

• Admins can review users, roles, account status, health, release, and platform context.
• Ops users can open cases from the ops console and perform workflow actions.
• Customers only see their linked cases and can upload evidence.
• Merchants only see their linked cases and can submit responses.
• Dashboard navigation now returns users to the correct console surface.

Why

To complete the final polish pass and ensure ReturnHub presents coherent, role-scoped product workflows instead of disconnected Django/API surfaces.

Validation

• Ran focused Django test suites throughout implementation.
• Ran Black, Ruff, and git diff --check on touched files.
• Latest full suite reported 465 passing tests with coverage above the configured threshold.

Result

ReturnHub now has complete role-aware dashboard flows for admin, ops, customer, and merchant users with clearer navigation and scoped case workflows.

Notes

Some final checks depended on Docker’s web service being available; where it was stopped, the change was still checked with git diff --check and verified once the service was available again.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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