Outline: per-chunk outlines, richer points, print and share

- One outline for the whole study plus one per chunk (picker at the top);
  chunk outlines can start from the chunk's verses, each carrying its words
- Points can have a type (illustration, application, quote, question,
  transition), minutes (with a running total), a longer note, verse text
  fetched from a passage, and cross-references / word studies attached from
  the chunk
- Share (system share sheet, or copy), Print / PDF, Copy as text, Word and
  Markdown downloads for any one outline
- All of it included in the Markdown, HTML/PDF and Word study exports,
  with each chunk's outline under that chunk

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/utils/outlineExport.js

@@ -0,0 +1,60 @@
+// Taking one outline out of the app: print or save as PDF, share it, or download it.
+import { buildOutlineHtml } from './bibleUtils.jsx';
+import { outlineToText } from './outline.js';
+
+const slug = (s) => String(s).replace(/[^\w]+/g, '-').replace(/^-|-$/g, '') || 'outline';
+
+function downloadBlob(blob, filename) {
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+  link.href = url;
+  link.download = filename;
+  document.body.appendChild(link);
+  link.click();
+  link.remove();
+  URL.revokeObjectURL(url);
+}
+
+// What gets shared as text: a heading, then the outline.
+export const outlineShareText = ({ title, subtitle = '', tree }) => `${title}${subtitle ? `\n${subtitle}` : ''}\n\n${outlineToText(tree)}`;
+
+// Opens a print-ready page of just this outline. Returns false when the browser blocked the window.
+export function printOutline({ title, subtitle, tree }) {
+  const win = window.open('', '_blank');
+  if (!win) return false;
+  win.document.write(buildOutlineHtml({ title, subtitle, tree }));
+  win.document.close();
+  win.onload = () => { win.focus(); win.print(); };
+  return true;
+}
+
+// Uses the phone/tablet/computer share sheet when there is one (Messages, Mail, AirDrop…), otherwise
+// copies the text. -> 'shared' | 'copied' | 'cancelled' | 'failed'
+export async function shareOutline(outline) {
+  const text = outlineShareText(outline);
+  if (navigator.share) {
+    try {
+      await navigator.share({ title: `${outline.title} — Outline`, text });
+      return 'shared';
+    } catch (err) {
+      if (err?.name === 'AbortError') return 'cancelled';
+      // fall through to copying
+    }
+  }
+  try {
+    await navigator.clipboard.writeText(text);
+    return 'copied';
+  } catch {
+    return 'failed';
+  }
+}
+
+export function downloadOutlineMarkdown({ title, subtitle, tree }) {
+  const text = `# ${title}\n\n${subtitle ? `*${subtitle}*\n\n` : ''}${tree.length ? outlineToText(tree) : ''}\n`;
+  downloadBlob(new Blob([text], { type: 'text/markdown;charset=utf-8' }), `${slug(title)}-outline.md`);
+}
+
+export async function downloadOutlineDocx(outline) {
+  const { buildOutlineDocxBlob } = await import('./docxExport.js'); // the Word library only loads when used
+  downloadBlob(await buildOutlineDocxBlob(outline), `${slug(outline.title)}-outline.docx`);
+}