feat: 引入可切换星历模型并扩展天象观测链路

- 新增半解析、旧模型、自定义与多源堆叠星历实例，提供 Context、Instance、SPK 读取及状态与视位置计算
- 统一太阳、月球和行星实例接口，扩展黄经穿越、留、相位、最近角距、偕日可见、任意高度升落、轨道节点及凌日等天象查询
- 完善日月食、月掩与凌日的月缘剖面、有限盘面接触、站心修正、局地可见性、全球路径和地图输出
- 新增 SVG、GeoJSON、KML 天象输出及凌日、月掩和月缘地形相关缓存与几何求解
- 新增恒星星表导入与查询，支持 CSV、Hipparcos、BSC5、Stellarium 等格式及名称、交叉标识、锥面检索和星等过滤
- 补充 IAU 2006、地球定向、折射消光、大气观测、轨道传播及半解析行星/月球数据支持
- 将默认未来民用时标切换为 TimeScaleLeapHour，更新 2027–2400 农历速查表、中文日期解析和时区边界处理
- 增加事件基线、跨模型回归、几何边界、月缘地形和输出契约测试，完善中英文手册、示例资源、NOTICE 与忽略规则

eclipse/lunar_panel.go

@@ -51,26 +51,33 @@ type LunarEclipseGeocentricPanel struct {
 	Ephemeris string
 }
 
-// LunarEclipseGeocentricPanelAt 计算给定日期月食的地心量面板，使用 Danjon 影半径模型。
-// LunarEclipseGeocentricPanelAt computes the geocentric panel of one lunar eclipse with the Danjon shadow model.
-func LunarEclipseGeocentricPanelAt(date time.Time) (LunarEclipseGeocentricPanel, bool) {
-	return lunarEclipseGeocentricPanelAt(date, basic.LunarEclipseDanjon)
+// LunarEclipseGeocentricPanelAt 计算给定日期月食的地心量面板，使用 Danjon 影半径模型 / geocentric lunar eclipse panel with Danjon shadow radii.
+func (module *Eclipse) LunarEclipseGeocentricPanelAt(date time.Time) (LunarEclipseGeocentricPanel, bool) {
+	return lunarEclipseGeocentricPanelAt(date, func(seedJDE float64) basic.LunarEclipseResult {
+		return module.lunarResult(seedJDE, false)
+	}, module)
 }
 
-// LunarEclipseGeocentricPanelChauvenet 计算给定日期月食的地心量面板，使用 Chauvenet 影半径模型。
-// LunarEclipseGeocentricPanelChauvenet computes the geocentric panel with the Chauvenet shadow model.
-func LunarEclipseGeocentricPanelChauvenet(date time.Time) (LunarEclipseGeocentricPanel, bool) {
-	return lunarEclipseGeocentricPanelAt(date, basic.LunarEclipseChauvenet)
+// LunarEclipseGeocentricPanelChauvenet 计算给定日期月食的地心量面板，使用 Chauvenet 影半径模型 / geocentric lunar eclipse panel with Chauvenet shadow radii.
+func (module *Eclipse) LunarEclipseGeocentricPanelChauvenet(date time.Time) (LunarEclipseGeocentricPanel, bool) {
+	return lunarEclipseGeocentricPanelAt(date, func(seedJDE float64) basic.LunarEclipseResult {
+		return module.lunarResult(seedJDE, true)
+	}, module)
 }
 
-func lunarEclipseGeocentricPanelAt(date time.Time, calculator func(float64) basic.LunarEclipseResult) (LunarEclipseGeocentricPanel, bool) {
+func lunarEclipseGeocentricPanelAt(date time.Time, calculator func(float64) basic.LunarEclipseResult, modules ...*Eclipse) (LunarEclipseGeocentricPanel, bool) {
+	module := &defaultModule
+	if len(modules) > 0 {
+		module = modules[0]
+	}
+
 	seed := timeToTTJDE(date)
-	fullMoonJDE := basic.CalcMoonSHByJDE(seed, 1)
+	fullMoonJDE := basic.CalcMoonSHByJDEWithInstance(seed, 1, module.inst)
 	result := calculator(fullMoonJDE)
 	if result.Type == basic.LunarEclipseNone {
 		return LunarEclipseGeocentricPanel{}, false
 	}
-	geometry := basic.LunarEclipseShadowGeometryAtModel(result.Maximum, result.ShadowModel)
+	geometry := basic.LunarEclipseShadowGeometryAtModelWithInstance(result.Maximum, result.ShadowModel, module.inst)
 	ephemeris := "Danjon"
 	if result.ShadowModel == basic.LunarEclipseShadowModelChauvenet {
 		ephemeris = "Chauvenet"
@@ -89,10 +96,10 @@ func lunarEclipseGeocentricPanelAt(date time.Time, calculator func(float64) basi
 		UmbralMagnitude:        result.Magnitude,
 		Ephemeris:              ephemeris,
 	}
-	panel.SunRightAscensionDeg, panel.SunDeclinationDeg = basic.SunApparentRaDec(result.Maximum)
-	panel.MoonRightAscensionDeg, panel.MoonDeclinationDeg = basic.HMoonTrueRaDec(result.Maximum)
-	panel.SunSemidiameterArcsec = basic.SolarEclipseSunSemidiameter(result.Maximum, basic.SolarEclipseSunRadiusStandard)
-	panel.MoonSemidiameterArcsec = basic.MoonSemidiameter(result.Maximum)
+	panel.SunRightAscensionDeg, panel.SunDeclinationDeg = basic.SunApparentRaDecWithInstance(result.Maximum, module.inst)
+	panel.MoonRightAscensionDeg, panel.MoonDeclinationDeg = basic.HMoonTrueRaDecWithInstance(result.Maximum, module.inst)
+	panel.SunSemidiameterArcsec = basic.SolarEclipseSunSemidiameterWithInstance(result.Maximum, basic.SolarEclipseSunRadiusStandard, module.inst)
+	panel.MoonSemidiameterArcsec = basic.MoonSemidiameterWithInstance(result.Maximum, module.inst)
 	panel.SunParallaxArcsec = horizontalParallaxArcsec(panel.SunSemidiameterArcsec, horizontalParallaxSunRatio)
 	panel.MoonParallaxArcsec = horizontalParallaxArcsec(panel.MoonSemidiameterArcsec, horizontalParallaxMoonRatio)
 	return panel, true