RI-8158: vector set similarity form and table

[dantovska]

What

Builds the similarity-search UI on top of the FE foundation landed in #vector-similarity-1 (slice + thunks + useSimilaritySearch hook).

• Similarity search form (similarity-search-form/) — three self-contained components:
  • SimilaritySearchForm with vector / element mode toggle, vector or element input (with FP32 + numeric validation against the key's vectorDim), result count, filter expression, BE-built command preview, and a submit + reset action row.
  • CommandPreview — renders the BE-built VSIM preview the search would actually run, with copy-to-clipboard and a neutral placeholder while idle.
  • FilterSyntaxHelpPopover — inline help next to the filter field, listing supported operators and example expressions.
• Submit button mirrors both the search and preview loading flags so the user can't dispatch a search before the preview has settled, and stays disabled until the form maps to a valid VSIM payload.
• Reset button (IconButton to the left of "Find similar items") — clears the form's local state and dispatches the hook's resetSimilaritySearch to wipe slice state. The form also remounts on key change (key={keyName}), and the slice is cleared on key change / unmount, so the form is reset whenever the user navigates to another key, closes the key details, or otherwise leaves the view.
• Similarity search results table (similarity-search-results/) — sorted by score with a "high match" highlight (HIGH_SIMILARITY_THRESHOLD = 0.85), reusing the existing Element rendering pipeline for compressor + view-format support. Replaces the regular vector-set element list in VectorSetDetails whenever a search has results.
• Exposed bytesToBase64 and validateVector from vector-set-element-form/utils so the hook layer (from #vector-similarity-1) can build the BE payload from the form state without duplicating validation logic.
• Re-exported QuantityCounter from @redis-ui/components via uiSrc/components/base/inputs.

Testing

Light	Dark

Add vector set with elements + similarity search

Uploading Screen Recording 2026-05-08 at 14.22.07.mov…

---

Note

Medium Risk
Adds new vector-set similarity-search UI plus new Redux slice state and async thunks (including debounced/abortable preview requests), which could affect browser key-details behavior and API traffic patterns.

Overview
Adds vector set similarity search to the key details view: a new SimilaritySearchForm (vector/element modes, count + filter inputs, debounced BE command preview with copy, and reset) and a SimilaritySearchResultsTable that replaces the normal elements list once a search has returned results.

Extends the vectorSet Redux slice with similaritySearch + similaritySearchPreview state, selectors, reducers, and new thunks hitting vector-set/similarity-search and /preview (with abort handling), and tightens several existing thunks to emit DEFAULT_ERROR_MESSAGE on non-success HTTP statuses. Also exports shared vector validation helpers (validateVector, bytesToBase64) for reuse and re-exports QuantityCounter for the form.

^{Reviewed by Cursor Bugbot for commit 6e1ff18. Bugbot is set up for automated code reviews on this repo. Configure here.}

[jit-ci]

🛡️ Jit Security Scan Results

✅ No security findings were detected in this PR

---

^{Security scan by Jit}

[github-actions]

Code Coverage - Backend unit tests

St.❔	Category	Percentage	Covered / Total
🟢	Statements	92.63%	15568/16806
🟡	Branches	74.71%	4878/6529
🟢	Functions	86.72%	2423/2794
🟢	Lines	92.47%	14879/16091

Test suite run success

3413 tests passing in 306 suites.

Report generated by 🧪jest coverage report action from 6e1ff18

[github-actions]

Code Coverage - Integration Tests

Status	Category	Percentage	Covered / Total
🟡	Statements	79.49%	17484/21993
🟡	Branches	61.96%	7993/12900
🟡	Functions	67.97%	2418/3557
🟡	Lines	79.06%	16441/20795

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

There are 2 total unresolved issues (including 1 from previous review).

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, have a team admin enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit f546a1b. Configure here.}

[github-actions]

Code Coverage - Frontend unit tests

St.❔	Category	Percentage	Covered / Total
🟢	Statements	82.72%	24442/29547
🟡	Branches	67.93%	10264/15110
🟡	Functions	77.88%	6598/8472
🟢	Lines	83.19%	23880/28706

Test suite run success

6867 tests passing in 793 suites.

Report generated by 🧪jest coverage report action from 6e1ff18

[valkirilov]

nit: I'm thinking of changing this to an enum, in case we use it in many places.

[valkirilov]

Do we need to fix the seeds for some reason?

The base branch was changed.

The base branch was changed.