fix(asr): restore computer terminology bias

Rebuild the bundled language model and runtime source filtering around a dedicated computer-term corpus so technical dictation keeps domain coverage.

OSGKeyboardTests/LocalASRBiasAdapterTests.swift

@@ -13,9 +13,9 @@ final class LocalASRBiasAdapterTests: XCTestCase {
         let url = dir.appendingPathComponent("phrases.tsv")
         let tsv = """
         word\tpinyin\tsource\tweight
-        SwiftUI\tswift ui\tai_tech_seed\t90
-        Kubernetes\tku bo ne si\tai_tech_seed\t90
-        一致性\tyi zhi xing\tai_tech_seed\t80
+        SwiftUI\tswift ui\tcomputer_terms\t5
+        Kubernetes\tku bo ne si\tcomputer_terms\t5
+        一致性\tyi zhi xing\tcomputer_terms\t5
         """
         try tsv.write(to: url, atomically: true, encoding: .utf8)
         addTeardownBlock {
@@ -103,12 +103,11 @@ final class LocalASRBiasAdapterTests: XCTestCase {
 
     func testBuiltinLexiconParsesTSV() {
         let terms = BuiltinLexiconIndex.parseTSV(
-            "word\tpinyin\tsource\tweight\nFoo\tfoo\tai_tech_seed\t80\n"
+            "word\tpinyin\tsource\tweight\nFoo\tfoo\tcomputer_terms\t5\n"
         )
         XCTAssertEqual(terms.count, 1)
         XCTAssertEqual(terms[0].word, "Foo")
-        XCTAssertEqual(terms[0].source, "ai_tech_seed")
-        XCTAssertEqual(terms[0].weight, 80)
+        XCTAssertEqual(terms[0].weight, 5)
     }
 
     func testPolishingServiceMergesDictionarySupplement() {

OSGKeyboardTests/LocalASRModelCatalogTests.swift

@@ -106,7 +106,7 @@ final class LocalASRModelCatalogTests: XCTestCase {
     func testMLXAdapterProducesPromptBiasNotHardHotwords() throws {
         let fixtureURL = FileManager.default.temporaryDirectory
             .appendingPathComponent("phrases-\(UUID().uuidString).tsv")
-        try "word\tpinyin\tsource\tweight\nSwiftUI\tswift ui\tai_tech_seed\t90\n"
+        try "word\tpinyin\tsource\tweight\nSwiftUI\tswift ui\tcomputer_terms\t5\n"
             .write(to: fixtureURL, atomically: true, encoding: .utf8)
         defer { try? FileManager.default.removeItem(at: fixtureURL) }