Enable Wellfound apply: fix missing apply_type, add submit verification

- Search now sets apply_type: 'wellfound' on discovered jobs (was missing,
  so applier silently skipped all Wellfound jobs)
- Add Wellfound to DEFAULT_ENABLED_APPLY_TYPES (LinkedIn first, then Wellfound)
- Sort platform processing order: linkedin → wellfound → external
- Apply handler: add closed listing detection, submit verification,
  error handling on meta extraction

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

job_applier.mjs

@@ -32,7 +32,7 @@ import {
   APPLY_RUN_TIMEOUT_MS, PER_JOB_TIMEOUT_MS
 } from './lib/constants.mjs';
 
-const DEFAULT_ENABLED_APPLY_TYPES = ['easy_apply'];
+const DEFAULT_ENABLED_APPLY_TYPES = ['easy_apply', 'wellfound'];
 
 const isPreview = process.argv.includes('--preview');
 
@@ -120,9 +120,12 @@ async function main() {
     byPlatform[platform].push(job);
   }
 
-  // Process each platform group
+  // Process each platform group — LinkedIn first, then Wellfound, then external
+  const platformOrder = ['linkedin', 'wellfound', 'external'];
+  const sortedPlatforms = Object.entries(byPlatform)
+    .sort((a, b) => (platformOrder.indexOf(a[0]) ?? 99) - (platformOrder.indexOf(b[0]) ?? 99));
   let timedOut = false;
-  for (const [platform, platformJobs] of Object.entries(byPlatform)) {
+  for (const [platform, platformJobs] of sortedPlatforms) {
     if (timedOut) break;
     console.log(`\n--- ${platform.toUpperCase()} (${platformJobs.length} jobs) ---\n`);
     let browser;

lib/apply/wellfound.mjs

@@ -14,7 +14,18 @@ export async function apply(page, job, formFiller) {
   const meta = await page.evaluate(() => ({
     title: document.querySelector('h1')?.textContent?.trim(),
     company: document.querySelector('[class*="company"] h2, [class*="startup"] h2, h2')?.textContent?.trim(),
-  }));
+  })).catch(() => ({}));
+
+  // Check if listing is closed/unavailable
+  const closed = await page.evaluate(() => {
+    const text = (document.body.innerText || '').toLowerCase();
+    return text.includes('no longer accepting') || text.includes('position has been filled') ||
+           text.includes('this job is no longer') || text.includes('job not found');
+  }).catch(() => false);
+  if (closed) {
+    console.log(`    ℹ️  Job closed — no longer available`);
+    return { status: 'skipped_no_apply', meta };
+  }
 
   const applyBtn = page.locator('a:has-text("Apply"), button:has-text("Apply Now"), a:has-text("Apply Now")').first();
   if (await applyBtn.count() === 0) return { status: 'no_button', meta };
@@ -33,5 +44,20 @@ export async function apply(page, job, formFiller) {
   await submitBtn.click();
   await page.waitForTimeout(SUBMIT_WAIT);
 
+  // Verify submission — check for success indicators or form gone
+  const postSubmit = await page.evaluate(() => {
+    const text = (document.body.innerText || '').toLowerCase();
+    return {
+      hasSuccess: text.includes('application submitted') || text.includes('successfully applied') ||
+                  text.includes('thank you') || text.includes('application received'),
+      hasForm: !!document.querySelector('form button[type="submit"]:not([disabled])'),
+    };
+  }).catch(() => ({ hasSuccess: false, hasForm: false }));
+
+  if (postSubmit.hasSuccess || !postSubmit.hasForm) {
     return { status: 'submitted', meta };
   }
+
+  console.log(`    ⚠️  Submit clicked but form still present — may not have submitted`);
+  return { status: 'incomplete', meta };
+}

lib/wellfound.mjs

@@ -69,6 +69,7 @@ export async function searchWellfound(page, search, { onPage } = {}) {
           results.push({
             id: `wf_${slug}`,
             platform: 'wellfound',
+            apply_type: 'wellfound',
             track,
             title,
             company,