[rongwei-liu]

Pull Request

What Changed

Brief description of changes:

• Preserve substring search in the relation instance picker after LIKE values become complete SQL patterns.
• Escape user-entered %, _, and backslash as literal characters.
• Add a focused regression test for wildcard characters and retain exact typed-identity lookup.

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Why

• Related Issue: openbkn-ai/bkn-foundry#3079
• Related Feature: Not applicable; this is a compatibility fix for an existing picker.
• Background: Under the complete SQL LIKE contract, the picker's previous plain-text value would become an exact match rather than the intended substring search.

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How

• Key implementation points: Wrap the escaped search term in % before sending the existing object-instance query. Numeric primary-key searches and structured identity searches retain their existing exact-match paths.
• Breaking changes (API, config, database, etc.): None in Studio; the server-side LIKE contract change is tracked in the related Foundry issue.

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Testing

• Unit tests passed locally
• Integration tests passed locally (not applicable; no live service was used)
• Verified in test environment (not performed)

Test notes: pnpm exec vitest --run --maxWorkers=50% src/modules/knowledge-network/eval/case-form.service.test.ts (13 passed); repository formatter, license check, format check, type-aware ESLint, tsc -b, production Vite build, and pnpm audit --prod passed. The build emits existing dependency annotation and chunk-size warnings.

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Risk & Rollback

• Potential risks: Search results depend on the server accepting complete SQL LIKE patterns. Deploy with the compatible Foundry version.
• Rollback plan: Revert this commit together with the server-side LIKE rollout if necessary.

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Additional Notes

• Screenshots, logs, documentation links, etc.: No UI layout changes. Paired Foundry PR: openbkn-ai/bkn-foundry#3122. It will close the cross-repository issue after both sides are reviewed.

[github-actions]

改动把关系实例选择器的文本检索改为 %<转义后关键词>% 的完整 SQL LIKE 模式，并补上了 _ 的转义，转义规则与仓内 data-catalog 的 sqlLikePatternRegex 约定一致；新增测试断言了真实请求体，未发现阻断问题。

影响范围与未覆盖面

• 影响范围：仅影响评测用例表单中关系实例选择器的模糊搜索；若 Studio 先于 Foundry 的 LIKE 契约改动上线，旧后端对显式 % 的处理方式会决定搜索结果是否正确。
• 未覆盖：后端 /agent-retrieval/v1/kn/query_object_instance 的 LIKE 转义语义在 Foundry 仓库，本轮未核实。

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