Annotation Filter input

[Mbeaulne]

Resolves: https://github.com/Shopify/oasis-frontend/issues/458

Description

Adds an annotation filter input component for filtering pipeline runs by key-value annotation pairs.

Note: This is a UI-only preview. The filters update the URL but are not properly connected to the API, causing a broken search state. This is resolved in a later PR in the stack.

Type of Change

• New feature

Changes

• Added AnnotationFilterInput component with:
  • Add annotation filters with key and optional value
  • Inline editing of existing filters (double-click to edit)
  • Remove filters with X button
  • Keyboard support (Enter to add/save, Escape to cancel)
• Integrated annotation filters into PipelineRunFiltersBar

Checklist

• I have tested this does not break current pipelines/runs functionality

Test Instructions

1. Enable the feature flag: Settings → Beta → "Pipeline run filters bar (UI only)"
2. Navigate to the Runs tab on the home page
3. Click "Add filter" in the Annotations row
4. Enter a key and optional value, press Enter or click Add
5. Double-click a badge to edit, click X to remove

[Mbeaulne]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• Filter Bar #1708 : 2 dependent PRs (#1709 , #1711 )
• Add created by me filter #1713
• Status filter #1707
• Annotation Filter input #1706 👈 (View in Graphite)
• WIP: Date picker #1705
• WIP: Add pipeline run filters bar with search functionality #1734
• WIP: Add useRunSearchParams hook for pipeline run filtering #1704
• master

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