perf(plugin-sdk): split web search config contract

src/plugins/contracts/extension-package-project-boundaries.test.ts

@@ -153,6 +153,9 @@ describe("opt-in extension package boundaries", () => {
     expect(packageJson.exports?.["./provider-web-search-contract"]?.types).toBe(
       "./dist/src/plugin-sdk/provider-web-search-contract.d.ts",
     );
+    expect(packageJson.exports?.["./provider-web-search-config-contract"]?.types).toBe(
+      "./dist/src/plugin-sdk/provider-web-search-config-contract.d.ts",
+    );
     expect(packageJson.exports?.["./runtime-doctor"]?.types).toBe(
       "./dist/src/plugin-sdk/runtime-doctor.d.ts",
     );

src/plugins/contracts/plugin-sdk-subpaths.test.ts

@@ -368,6 +368,22 @@ describe("plugin-sdk subpath exports", () => {
         "resolveCitationRedirectUrl",
       ],
     });
+    expectSourceContract("provider-web-search-config-contract", {
+      mentions: [
+        "getScopedCredentialValue",
+        "resolveProviderWebSearchPluginConfig",
+        "setScopedCredentialValue",
+        "setProviderWebSearchPluginConfigValue",
+        "WebSearchProviderPlugin",
+      ],
+      omits: [
+        "enablePluginInConfig",
+        "buildSearchCacheKey",
+        "withTrustedWebSearchEndpoint",
+        "writeCachedSearchPayload",
+        "resolveCitationRedirectUrl",
+      ],
+    });
     expectSourceContract("provider-web-fetch-contract", {
       mentions: ["enablePluginInConfig", "WebFetchProviderPlugin"],
       omits: [