v1.0.0: URL-to-PDF + Doc Site Crawler

- Single URL to PDF via Puppeteer (Chrome headless)
- Doc Site Crawler: crawl entire documentation sites
  - Auto-extract all pages from TOC navigation
  - 20-page batch processing with browser restart (anti-OOM)
  - Output: PDF + Markdown
- Flask-style HTTP server on port 8099
- Deployed at https://pdf.donton.cloud/url2pdf

find_links.js

@@ -0,0 +1,44 @@
+const puppeteer = require("puppeteer");
+(async () => {
+  const browser = await puppeteer.launch({headless: true, args: ["--no-sandbox"]});
+  const page = await browser.newPage();
+  
+  const base = process.argv[2];
+  await page.goto(base, {waitUntil: "networkidle2", timeout: 30000});
+  await new Promise(r => setTimeout(r, 3000));
+  
+  const allLinks = await page.evaluate(() => {
+    const links = [];
+    document.querySelectorAll("a[href]").forEach(a => {
+      links.push({href: a.href, text: a.textContent.trim().slice(0, 60)});
+    });
+    return links;
+  });
+  
+  const baseUrl = new URL(base);
+  const docsLinks = [];
+  const seen = new Set();
+  
+  for (const link of allLinks) {
+    try {
+      const u = new URL(link.href);
+      if (u.hostname === baseUrl.hostname && 
+          link.href.includes("/documentation/") &&
+          !link.href.includes("#") &&
+          !seen.has(link.href)) {
+        seen.add(link.href);
+        docsLinks.push(link);
+      }
+    } catch(e) {}
+  }
+  
+  console.log("Total links:", allLinks.length);
+  console.log("Doc links:", docsLinks.length);
+  
+  // Print them
+  docsLinks.forEach((l, i) => {
+    console.log(`${i+1}. ${l.href.split("/").pop().substring(0, 80)} — ${l.text}`);
+  });
+  
+  await browser.close();
+})();