Expand onboarding and adaptive keyboard intelligence

Add resilient usage analytics, OOBE gateway flows, clipboard semantic ranking, purchase recovery, style learning, and managed current-information search.

OSGKeyboardTests/IntelligentPolishTests.swift

@@ -419,9 +419,36 @@ final class IntelligentPolishTests: XCTestCase {
         )
         XCTAssertEqual(outcome.text, "please keep user_id in this technical message")
         XCTAssertTrue(outcome.qualityDegraded)
+        XCTAssertNil(outcome.polishStyleID)
+        XCTAssertNil(outcome.polishStylePrompt)
         XCTAssertEqual(client.temperatures.compactMap { $0 }, [0.1])
     }
 
+    func testSuccessfulPolishReturnsExactStyleSnapshotForHistory() async throws {
+        var catalog = PolishStyleCatalog()
+        let style = PolishStylePack(
+            id: "user.snapshot",
+            name: "Snapshot",
+            prompt: "# 角色\n自然表达\n# 风格边界\n保持原意\n# 示例\n输入 → 输出"
+        )
+        try catalog.upsert(style)
+        store.setPolishStyleCatalog(catalog)
+        store.setActivePolishStyleId(style.id)
+        let service = PolishingService(
+            store: store,
+            client: FixedResponseLLMClient(response: "今天的部署已经完成。")
+        )
+
+        let outcome = try await service.polishWithOutcome(
+            "今天的部署已经完成",
+            context: PolishContext()
+        )
+
+        XCTAssertFalse(outcome.qualityDegraded)
+        XCTAssertEqual(outcome.polishStyleID, style.id)
+        XCTAssertEqual(outcome.polishStylePrompt, style.prompt)
+    }
+
     func testValidatorFallsBackToMinimalPolishAfterHardFailure() async throws {
         let service = PolishingService(
             store: store,
@@ -585,6 +612,18 @@ final class IntelligentPolishTests: XCTestCase {
         XCTAssertEqual(delivery.polishWarning, SharedL10n.string("flow.warning.polishDegraded"))
     }
 
+    func testCompletedOOBEPageDoesNotReportWeakNetworkOrBlockProgress() {
+        let delivery = TranscriptionPolishFallback.makeDelivery(
+            rawText: "今天 是 礼拜四",
+            error: ManagedGatewayError.oobeFeatureAlreadyUsed,
+            engineMode: "local",
+            chunkWarning: nil
+        )
+
+        XCTAssertEqual(delivery.text, "今天是礼拜四")
+        XCTAssertNil(delivery.polishWarning)
+    }
+
     func testTranscriptionPolishFallbackLocalMissingKeyWarning() {
         let delivery = TranscriptionPolishFallback.makeDelivery(
             rawText: "测试文本",