feat: 完成四种字母描红开发

miniprogram/core/data/worksheets.ts

@@ -280,7 +280,7 @@ export const ALL_WORKSHEETS: WorksheetDefinition[] = [
                 instructionText: '看一看，读一读，再描一描',
             },
             generatorConfig: {
-                mode: 'picture-tracing',
+                mode: 'letter-tracing-single',
                 letterCase: 'upper',
                 selectedLetter: 'A',
                 repetitions: 5,
@@ -290,9 +290,9 @@ export const ALL_WORKSHEETS: WorksheetDefinition[] = [
     ),
     sheet(
         {
-            id: 'letter-tracing-full',
-            title: '分栏对照',
-            desc: '半组字母左大写右小写，每行四个',
+            id: 'letter-tracing-two-column',
+            title: '两列练习',
+            desc: '左 A–M、右 N–Z，每组包含大小写',
             category: 'english',
             page: 'letterTracing',
             subpackage: 'englishPages',
@@ -301,7 +301,7 @@ export const ALL_WORKSHEETS: WorksheetDefinition[] = [
             ageRange: [4, 7],
             difficulty: 'beginner',
             previewBg: '#e8f4ff',
-            previewText: 'A→Z',
+            previewText: 'A|N',
         },
         {
             subcategory: 'letter-tracing',
@@ -310,12 +310,12 @@ export const ALL_WORKSHEETS: WorksheetDefinition[] = [
             sortOrder: 43,
             layoutConfig: {
                 ...L.trace,
-                instructionText: '左栏大写、右栏小写，逐行对应描红',
+                columns: 2,
+                instructionText: '左 A–M、右 N–Z，大小写配对描红',
             },
             generatorConfig: {
-                mode: 'column-compare',
+                mode: 'letter-tracing-two-column',
                 letterCase: 'both',
-                alphabetHalf: 'A-M',
                 repetitions: 4,
                 fadePattern: 'gradient',
             },
@@ -347,7 +347,7 @@ export const ALL_WORKSHEETS: WorksheetDefinition[] = [
                 instructionText: '认读全部大写与小写字母',
             },
             generatorConfig: {
-                mode: 'overview',
+                mode: 'letter-tracing-upper-lower',
                 letterCase: 'both',
                 repetitions: 1,
                 fadePattern: 'first-only',
@@ -356,9 +356,9 @@ export const ALL_WORKSHEETS: WorksheetDefinition[] = [
     ),
     sheet(
         {
-            id: 'letter-tracing-two-column',
-            title: '大小写配对',
-            desc: '左 A–M、右 N–Z，每行四组大小写',
+            id: 'letter-tracing-case-pairing',
+            title: '大小写练习',
+            desc: '半组字母左大写右小写，每行四个',
             category: 'english',
             page: 'letterTracing',
             subpackage: 'englishPages',
@@ -367,7 +367,7 @@ export const ALL_WORKSHEETS: WorksheetDefinition[] = [
             ageRange: [4, 7],
             difficulty: 'beginner',
             previewBg: '#e8f4ff',
-            previewText: 'A|N',
+            previewText: 'A→Z',
         },
         {
             subcategory: 'letter-tracing',
@@ -376,12 +376,12 @@ export const ALL_WORKSHEETS: WorksheetDefinition[] = [
             sortOrder: 45,
             layoutConfig: {
                 ...L.trace,
-                columns: 2,
-                instructionText: '沿虚线描写字母',
+                instructionText: '左栏大写、右栏小写，逐行对应描红',
             },
             generatorConfig: {
-                mode: 'case-pairing',
+                mode: 'letter-tracing-case-pairing',
                 letterCase: 'both',
+                alphabetHalf: 'A-M',
                 repetitions: 4,
                 fadePattern: 'gradient',
             },
@@ -412,7 +412,7 @@ export const ALL_WORKSHEETS: WorksheetDefinition[] = [
                 instructionText: '每页 3 个字母，逐字精练',
             },
             generatorConfig: {
-                mode: 'triple-focus',
+                mode: 'letter-tracing-triple',
                 letterCase: 'both',
                 repetitions: 5,
                 fadePattern: 'gradient',
@@ -445,7 +445,7 @@ export const ALL_WORKSHEETS: WorksheetDefinition[] = [
                 instructionText: '每行一个字母，逐字反复练习',
             },
             generatorConfig: {
-                mode: 'single-line',
+                mode: 'letter-tracing-single-line',
                 letterCase: 'both',
                 alphabetHalf: 'A-M',
                 repetitions: 5,