fix(batch): resolve pandoc path handling and include-subfolders option

- Normalize pandoc command parsing with path.basename() to support bundled binary paths
- Use bundled pandoc binary in convertWithPandoc instead of relying on PATH
- Forward includeSubfolders checkbox state from renderer to main process
- Add pandoc availability check before batch conversion
- Re-enable Start button when batch conversion completes
- Clean up obsolete dist build artifact causing test snapshot warning
- Bump version to 4.4.4

tests/project-manager.test.js

@@ -8,15 +8,22 @@ describe('ProjectManager', () => {
     files = {};
     pm = new ProjectManager({
       readFile: (p) => files[p] || null,
-      writeFile: (p, c) => { files[p] = c; },
+      writeFile: (p, c) => {
+        files[p] = c;
+      },
       fileExists: (p) => p in files,
-      listDir: (p) => Object.keys(files).filter(f => f.startsWith(p)).map(f => f.slice(p.length + 1))
+      listDir: (p) =>
+        Object.keys(files)
+          .filter((f) => f.startsWith(p))
+          .map((f) => f.slice(p.length + 1)),
     });
   });
 
   test('createProject writes .project.json', () => {
     const project = pm.createProject('/manuscripts/novel', {
-      title: 'My Novel', type: 'manuscript', targetWords: 80000
+      title: 'My Novel',
+      type: 'manuscript',
+      targetWords: 80000,
     });
     expect(project.title).toBe('My Novel');
     expect(files['/manuscripts/novel/.project.json']).toBeDefined();
@@ -26,8 +33,11 @@ describe('ProjectManager', () => {
 
   test('loadProject reads and returns project data', () => {
     files['/manuscripts/novel/.project.json'] = JSON.stringify({
-      title: 'Test', type: 'manuscript', target: { words: 50000 },
-      chapters: [], metadata: {}
+      title: 'Test',
+      type: 'manuscript',
+      target: { words: 50000 },
+      chapters: [],
+      metadata: {},
     });
     const project = pm.loadProject('/manuscripts/novel');
     expect(project.title).toBe('Test');
@@ -39,10 +49,17 @@ describe('ProjectManager', () => {
 
   test('addChapter appends chapter and saves', () => {
     files['/manuscripts/novel/.project.json'] = JSON.stringify({
-      title: 'Test', type: 'manuscript', target: { words: 50000 },
-      chapters: [], metadata: {}
+      title: 'Test',
+      type: 'manuscript',
+      target: { words: 50000 },
+      chapters: [],
+      metadata: {},
+    });
+    pm.addChapter('/manuscripts/novel', {
+      file: '01-chapter.md',
+      title: 'Chapter One',
+      status: 'draft',
     });
-    pm.addChapter('/manuscripts/novel', { file: '01-chapter.md', title: 'Chapter One', status: 'draft' });
     const parsed = JSON.parse(files['/manuscripts/novel/.project.json']);
     expect(parsed.chapters.length).toBe(1);
     expect(parsed.chapters[0].title).toBe('Chapter One');
@@ -50,11 +67,14 @@ describe('ProjectManager', () => {
 
   test('compileManuscript concatenates chapter files', () => {
     files['/manuscripts/novel/.project.json'] = JSON.stringify({
-      title: 'Test', type: 'manuscript', target: { words: 50000 },
+      title: 'Test',
+      type: 'manuscript',
+      target: { words: 50000 },
       chapters: [
         { file: '01.md', title: 'One', status: 'draft' },
-        { file: '02.md', title: 'Two', status: 'draft' }
-      ], metadata: {}
+        { file: '02.md', title: 'Two', status: 'draft' },
+      ],
+      metadata: {},
     });
     files['/manuscripts/novel/01.md'] = 'First chapter content.';
     files['/manuscripts/novel/02.md'] = 'Second chapter content.';
@@ -64,11 +84,14 @@ describe('ProjectManager', () => {
 
   test('compileManuscript skips missing files', () => {
     files['/manuscripts/novel/.project.json'] = JSON.stringify({
-      title: 'Test', type: 'manuscript', target: { words: 50000 },
+      title: 'Test',
+      type: 'manuscript',
+      target: { words: 50000 },
       chapters: [
         { file: '01.md', title: 'One', status: 'draft' },
-        { file: '02.md', title: 'Two', status: 'draft' }
-      ], metadata: {}
+        { file: '02.md', title: 'Two', status: 'draft' },
+      ],
+      metadata: {},
     });
     files['/manuscripts/novel/01.md'] = 'Only chapter one.';
     const result = pm.compileManuscript('/manuscripts/novel');
@@ -77,11 +100,14 @@ describe('ProjectManager', () => {
 
   test('getStats returns total word count across chapters', () => {
     files['/manuscripts/novel/.project.json'] = JSON.stringify({
-      title: 'Test', type: 'manuscript', target: { words: 50000 },
+      title: 'Test',
+      type: 'manuscript',
+      target: { words: 50000 },
       chapters: [
         { file: '01.md', title: 'One', status: 'draft' },
-        { file: '02.md', title: 'Two', status: 'draft' }
-      ], metadata: {}
+        { file: '02.md', title: 'Two', status: 'draft' },
+      ],
+      metadata: {},
     });
     files['/manuscripts/novel/01.md'] = 'word '.repeat(100).trim();
     files['/manuscripts/novel/02.md'] = 'more '.repeat(50).trim();
@@ -94,9 +120,11 @@ describe('ProjectManager', () => {
 
   test('updateChapter modifies a chapter by index', () => {
     files['/manuscripts/novel/.project.json'] = JSON.stringify({
-      title: 'Test', type: 'manuscript', target: { words: 50000 },
+      title: 'Test',
+      type: 'manuscript',
+      target: { words: 50000 },
       chapters: [{ file: '01.md', title: 'Old Title', status: 'draft' }],
-      metadata: {}
+      metadata: {},
     });
     pm.updateChapter('/manuscripts/novel', 0, { title: 'New Title', status: 'revised' });
     const parsed = JSON.parse(files['/manuscripts/novel/.project.json']);