feat(nexus-operations): standalone nexus operations list page [DT-4003]

[rossedfort]

Motivation

Adds the standalone nexus operations list page (Phase 3 of the SANO feature). This page lets users browse, filter, and inspect nexus operation executions for a namespace — mirroring the standalone activities list page pattern.

Implementation

New route: namespaces/[namespace]/nexus-operations

Page components:

• src/lib/pages/standalone-nexus-operations.svelte — full page with status count filters, configurable table, and filter bar
• src/lib/components/standalone-nexus-operations/nexus-operations-summary-configurable-table.svelte — paginated configurable table
• nexus-operations-summary-configurable-table/ — table header/body cell, header row, table row, empty state, filterable cell subcomponents
• nexus-operations-summary-filter-bar/filter-bar.svelte — search attribute filter bar wired to nexus operation stores

New utilities:

• src/lib/utilities/get-nexus-operation-status-and-count.ts — maps NexusOperationExecutionStatus enum values to display statuses and parses group-by count responses

Store additions:

• nexusOperationSearchAttributes and nexusOperationSearchAttributeOptions added to search-attributes.ts

Nav wiring (+layout.svelte):

• Nav item added with icon: 'nexus', hidden until server version >= 1.31.0
• Namespace picker and getCurrentHref routing updated to include nexus-operations

i18n: Added page strings to standalone-nexus-operations.ts and filter-nexus-operations key to common.ts

Tests

Unit tests for get-nexus-operation-status-and-count.ts (13 tests):

• toNexusOperationStatus — all 7 enum value mappings
• nexusOperationStatuses — correct order
• getNexusOperationStatusAndCountOfGroup — empty/undefined, single group, multi-group sorting, integer count parsing

Manual Test Plan

Prerequisites:

• Temporal server >= 1.31.0 with nexus operations support
• A namespace with some nexus operation executions in various states

Checklist

• Navigate to a namespace — "Standalone Nexus Operations" nav item appears in the sidebar
• Nav item is hidden when server version < 1.31.0
• Clicking the nav item routes to /namespaces/{namespace}/nexus-operations
• Page renders the status count filter row (All / Running / Completed / Failed / Canceled / Terminated / Timed Out)
• Each status count badge shows the correct count from the API
• Clicking a status filter updates the table to show only operations with that status
• The table displays default columns: Status, Operation ID, Endpoint, Service, Operation, Schedule Time
• Clicking the gear icon opens the column configuration panel
• Adding/removing columns updates the table and persists across page reloads
• The search/filter bar accepts text and search attribute filters
• Entering a query filters the table rows and updates the URL
• Clearing the query restores all results
• Pagination controls work (next/previous, page size selector)
• Switching namespaces via the namespace picker navigates to nexus-operations for the new namespace
• Empty state message displays when no operations match the current filter
• Page title in browser tab shows "Standalone Nexus Operations | {namespace}"

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Project	Deployment	Actions	Updated (UTC)
holocene	Ready	Preview, Comment	May 28, 2026 8:55pm