feat: 完善星表查询与跨版本回归验证

- 将星表名称数据收敛为 TSV/GZIP 单一数据源，补充中文名、别名、英文常用名及宿/垣区域字段
- 增加星表名称表加载校验、旧详情字段一致性校验和 GZIP 漂移检查
- 新增 StarDataByName、StarDataByNameAll、StarDataByNameIn ，统一中英文查询与重名消歧
- 优化日月食半影带、升落曲线和可见性回归测试，补充极区、拓扑及低精度场景覆盖
- 增加 Go 1.16/386 兼容门禁和测试案例，处理旧工具链的分配、拓扑、SVG字节及 ULP 差异
- 补充星表、坐标、日月食和低精度回归用例，完善测试文件与缓存忽略规则

star/star.go

@@ -175,9 +175,25 @@ func StarDataByHR(hr int) (basic.StarData, error) {
 	return basic.StarDataByHR(hr)
 }
 
-// StarDataByName 按中文名查询恒星数据 / returns star data by Chinese name.
+// ErrStarNotFound 未找到匹配的恒星 / no matching star.
+var ErrStarNotFound = basic.ErrStarNotFound
+
+// ErrStarNameAmbiguous 星名对应多颗恒星 / the star name matches more than one star.
+var ErrStarNameAmbiguous = basic.ErrStarNameAmbiguous
+
+// StarDataByName 按中文名、中文别名或英文常用名查唯一恒星；同名多星返回 ErrStarNameAmbiguous / returns the unique star by Chinese name, alias or English common name, or ErrStarNameAmbiguous for duplicate names.
 func StarDataByName(name string) (basic.StarData, error) {
-	return basic.StarDataByChinese(name)
+	return basic.StarDataByName(name)
+}
+
+// StarDataByNameAll 返回中文名、别名或英文常用名的全部候选，按 HR 升序 / all candidates by HR order.
+func StarDataByNameAll(name string) ([]basic.StarData, error) {
+	return basic.StarDataByNameAll(name)
+}
+
+// StarDataByNameIn 按中文名、别名或英文常用名与宿/垣限定查询唯一恒星 / returns the unique star within a mansion or enclosure.
+func StarDataByNameIn(name, region string) (basic.StarData, error) {
+	return basic.StarDataByNameIn(name, region)
 }
 
 // TopBrightStars 明亮恒星样本 / bright-star sample list.

star/star_name_test.go

@@ -0,0 +1,66 @@
+package star
+
+import (
+	"errors"
+	"testing"
+)
+
+func TestStarDataByNameAmbiguity(t *testing.T) {
+	if err := InitStarDatabase(); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := StarDataByName("杵增一"); !errors.Is(err, ErrStarNameAmbiguous) {
+		t.Fatalf("StarDataByName(杵增一) error = %v, want ErrStarNameAmbiguous", err)
+	}
+	if _, err := StarDataByName("不存在的星名"); !errors.Is(err, ErrStarNotFound) {
+		t.Fatalf("StarDataByName(不存在的星名) error = %v, want ErrStarNotFound", err)
+	}
+	if _, err := StarDataByNameIn("杵增一", ""); !errors.Is(err, ErrStarNameAmbiguous) {
+		t.Fatalf("StarDataByNameIn(杵增一, \"\") error = %v, want ErrStarNameAmbiguous", err)
+	}
+	matches, err := StarDataByNameAll("杵增一")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(matches) != 2 || matches[0].HR != 6743 || matches[1].HR != 8449 {
+		t.Fatalf("StarDataByNameAll(杵增一) = %v, want HR 6743 and 8449", matches)
+	}
+	tests := []struct {
+		name   string
+		region string
+		hr     uint16
+	}{
+		{"杵增一", "箕宿", 6743},
+		{"杵增一", "危宿", 8449},
+		{"杵一", "箕宿", 6537},
+		{"杵一", "危宿", 8498},
+	}
+	for _, tc := range tests {
+		got, err := StarDataByNameIn(tc.name, tc.region)
+		if err != nil {
+			t.Fatalf("StarDataByNameIn(%q, %q): %v", tc.name, tc.region, err)
+		}
+		if got.HR != tc.hr || got.ChineseRegion != tc.region {
+			t.Fatalf("StarDataByNameIn(%q, %q) = HR %d region %q, want HR %d region %q",
+				tc.name, tc.region, got.HR, got.ChineseRegion, tc.hr, tc.region)
+		}
+	}
+	english, err := StarDataByName("sirius")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if english.HR != 2491 {
+		t.Fatalf("StarDataByName(sirius) = HR %d, want 2491", english.HR)
+	}
+	if _, err := StarDataByName("Gienah"); !errors.Is(err, ErrStarNameAmbiguous) {
+		t.Fatalf("StarDataByName(Gienah) error = %v, want ErrStarNameAmbiguous", err)
+	}
+
+	got, err := StarDataByName("杵增一[危宿]")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got.HR != 8449 {
+		t.Fatalf("StarDataByName(杵增一[危宿]) = HR %d, want 8449", got.HR)
+	}
+}