chore/add-queue-filters-to-template

[AAdewunmi]

Summary

Adds queue filter controls to the Ops queue template and wires filter-state persistence through the view context.

Changes

• Updated policylens/apps/ops/templates/ops/queue.html:
  • Added GET-based filter form for:
    • status
    • priority
    • sla
  • Added Apply and Reset actions.
  • Added selected-option persistence using filters.* values.
  • Added improved empty state message when no results match.
  • Rendered queue table rows with rank, claim link, policy, priority, status, SLA badge, and created timestamp.
• Updated policylens/apps/ops/views.py:
  • Parses query params (status, priority, sla).
  • Passes filters object into template context for UI persistence.
  • Keeps queue ordering via shared build_queue_queryset(...).
  • Assigns one-based queue_rank for display.

Why

• Enables in-page filtering of the review queue without leaving the Ops UI.
• Preserves selected filter values after submit, improving operator workflow and reducing repeated input.
• Aligns UI queue behavior with canonical domain/API queue logic.

Validation

• Verified template contains all three filter controls and selected-value bindings.
• Verified queue_view passes filters context required by template persistence.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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