feat: migrate on-device Qwen3 ASR to CoreML for background Flow dictation

Replace MLX GPU inference with CoreML bundles so transcription continues while the host app is backgrounded. Adds model download and warm-up, vendored Qwen3Speech, and updates onboarding, settings, and copy for the ~1.6 GB CoreML package (iOS 18+).
2026-06-23 00:46:58 +08:00
parent 5e5122f172
commit df1c5ff32c
160 changed files with 22080 additions and 492 deletions
@@ -0,0 +1,44 @@
+// ProgressiveDictationTranscriptAccumulatorTests.swift
+// OSGKeyboardTests
+
+import CoreMedia
+import XCTest
+@testable import OSGKeyboardShared
+
+final class ProgressiveDictationTranscriptAccumulatorTests: XCTestCase {
+
+    private func range(start: Double, duration: Double = 30) -> CMTimeRange {
+        CMTimeRange(
+            start: CMTime(seconds: start, preferredTimescale: 600),
+            duration: CMTime(seconds: duration, preferredTimescale: 600)
+        )
+    }
+
+    func testCumulativePartialsWithinSameRangeUpdateSegment() {
+        var acc = ProgressiveDictationTranscriptAccumulator()
+        let r0 = range(start: 0)
+
+        XCTAssertEqual(acc.ingest(range: r0, text: "今天天气"), "今天天气")
+        XCTAssertEqual(acc.ingest(range: r0, text: "今天天气很好"), "今天天气很好")
+        XCTAssertEqual(acc.finalize(), "今天天气很好")
+    }
+
+    func testNewRangeAppendsInsteadOfReplacingEarlierSpeech() {
+        var acc = ProgressiveDictationTranscriptAccumulator()
+        let r0 = range(start: 0)
+        let r30 = range(start: 30)
+
+        _ = acc.ingest(range: r0, text: "前三十秒的内容")
+        _ = acc.ingest(range: r30, text: "后二十秒的内容")
+
+        XCTAssertEqual(acc.finalize(), "前三十秒的内容 后二十秒的内容")
+    }
+
+    func testDuplicateEmissionIsSuppressed() {
+        var acc = ProgressiveDictationTranscriptAccumulator()
+        let r0 = range(start: 0)
+
+        XCTAssertNotNil(acc.ingest(range: r0, text: "hello"))
+        XCTAssertNil(acc.ingest(range: r0, text: "hello"))
+    }
+}