fix(select): preserve object search callback pipeline

[nrps9909]

When SearchSelect receives showSearch={{ onSearch }}, rc-select gives the object callback precedence over the top-level callback. This skips ProComponents' wrapper: typing calls the consumer callback but never forwards the keyword to request or updates ProComponents' search state. searchOnFocus also still calls the deprecated top-level callback instead of the resolved object callback.

Compose the existing search handler into the object configuration and reuse the resolved callback for focus resets. Boolean search behavior and fetchDataOnSearch={false} remain covered by controls. This is a remaining callback-composition bug after #9680, separate from the superseded #9689 feature-support patch and #9706's top-level prop feature.

Validation on signed/GitHub-Verified head e2aecd9510cb75e4710be7d9ccb3a0ef641696d3, based on current master 67ed7d4c37595bd1cd5c0709aff95d1531b7b486 (Node 26.10.0 / pnpm 9.15.9 / Vitest 4.1.11):

• Before the fix: 2 regressions fail (missing keyword request and incorrect focus callback), 3 controls pass.
• After the fix: all 5 new cases pass, including callback-once during typing and disabled remote fetching.
• Full pnpm test: 122 files / 1,386 tests pass.
• pnpm tsc, focused ESLint/Prettier, git diff --check, and full pnpm build (UMD, ES/CJS and declarations): pass.

AI assistance: Codex helped reproduce the two failures, implement the callback composition, run validation, and prepare this PR. New-head upstream CI is separate from these local results.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: 9db1be08-dc72-4b15-b548-eab72099680c

📥 Commits

Reviewing files that changed from the base of the PR and between 67ed7d4 and e2aecd9.

📒 Files selected for processing (2)

• src/field/components/Select/SearchSelect/index.tsx
• tests/form/searchSelectObject.test.tsx

Included review availability: This review used your included allowance. Your plan provides up to 8 included reviews per hour; 7 remain after this review.

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📝 Walkthrough

Walkthrough

SearchSelect 将请求、搜索回调和搜索值更新集中到统一处理器，并调整对象形式 showSearch 的回调接入方式。新增测试覆盖请求条件和聚焦时的搜索重置行为。

Changes

SearchSelect 搜索处理

Layer / File(s)	Summary
统一搜索回调与请求处理 src/field/components/Select/SearchSelect/index.tsx, tests/form/searchSelectObject.test.tsx	新增统一处理器，根据 fetchDataOnSearch 决定是否请求数据，并调用有效搜索回调、更新搜索值。对象形式的 showSearch 保留配置并使用该处理器。测试覆盖请求条件，以及聚焦时回调收到空字符串、请求收到 undefined 的情况。

Priority: ➖ Normal

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Suggested reviewers: chenshuai2144

Merge Risk: ⚪ Minimal · up to e2aec

The change restores object-form search callbacks to the request pipeline while preserving disabled-fetch behavior and aligning focus resets. No actionable merge-blocking risk is identified; merge after normal checks pass.

Security Architecture Review

Security architecture risk: 🔵 Low · up to e2aec

The change restores search behavior using the application's existing request callback. The remote-fetch setting and callback precedence remain enforced, and no new privileged access or security-control bypass was identified. Authorization within application-specific request handlers was not assessed.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

• inferred — The changed reachability is typed input reaching the existing application-supplied request handler for object-form search configurations. Effective service, tenant and data exposure depends on that handler; the inspected component does not establish those downstream scopes.

Trust Boundaries and Controls

• observed — The inspected path forwards the keyword without adding credentials or changing identity context. Request authority remains with the caller-provided function, and the adapter preserves the field-level fetchDataOnSearch override.

Resilience and Maintainability Implications

• observed — The handler preserves the base synchronous ordering and introduces no atomicity, cancellation or exception boundary. Request state remains managed through the existing debounced SWR key and reset function. Cancellation, stale-response behavior and recovery inside downstream request implementations were not verified.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 2…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	标题准确概括了主要变更：修复 SearchSelect 在对象形式 showSearch 下保留并组合搜索回调链路的问题。标题简洁、明确，并与代码和测试变更一致。

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

• Commit to this branch
• Create a new PR

🧪 Generate unit tests (beta)

• Create a new PR

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_{小兔敲下搜索词，
请求循着关键词跑。
回调收下新消息，
聚焦时旧词轻轻消。
绿叶旁，测试跳一跳。}

_{Comment @coderabbitai help to get the list of available commands.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.14%. Comparing base (67ed7d4) to head (e2aecd9).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #9711   +/-   ##
=======================================
  Coverage   88.14%   88.14%           
=======================================
  Files         422      422           
  Lines       12161    12161           
  Branches     4461     4463    +2     
=======================================
  Hits        10719    10719           
  Misses       1284     1284           
  Partials      158      158           

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