Decouple form filler from LinkedIn modal selector

Form filler now defaults to page root instead of scoping to
[role="dialog"]. LinkedIn Easy Apply passes its modal selector
explicitly. Fixes external ATS forms being scoped to wrong
container. Also improved Greenhouse handler with targeted
resume upload and form detection.

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

lib/apply/easy_apply.mjs

@@ -212,7 +212,7 @@ export async function apply(page, job, formFiller) {
     }
 
     // Fill form fields — page.$() in form_filler pierces shadow DOM
-    const unknowns = await formFiller.fill(page, formFiller.profile.resume_path);
+    const unknowns = await formFiller.fill(page, formFiller.profile.resume_path, { modalSelector: MODAL });
     if (unknowns.length > 0) console.log(`    [step ${step}] unknown fields: ${JSON.stringify(unknowns.map(u => u.label || u))}`);
 
     if (unknowns[0]?.honeypot) {

lib/apply/greenhouse.mjs

@@ -1,5 +1,8 @@
 /**
  * greenhouse.mjs — Greenhouse ATS handler (extends generic)
+ *
+ * Greenhouse boards show the form directly on the page (no Apply button needed).
+ * Form ID: #application-form. Resume input: #resume. Submit: "Submit application".
  */
 import { apply as genericApply } from './generic.mjs';
 
@@ -7,6 +10,19 @@ export const SUPPORTED_TYPES = ['greenhouse'];
 
 export async function apply(page, job, formFiller) {
   return genericApply(page, job, formFiller, {
-    submitSelector: 'button:has-text("Submit Application"), input[type="submit"]',
+    formDetector: '#application-form',
+    submitSelector: 'button:has-text("Submit application"), input[type="submit"]',
+    verifySelector: '#application-form',
+    beforeSubmit: async (page, formFiller) => {
+      if (!formFiller.profile.resume_path) return;
+      const resumeInput = await page.$('#resume');
+      if (resumeInput) {
+        const hasFile = await resumeInput.evaluate(el => !!el.value);
+        if (!hasFile) {
+          await resumeInput.setInputFiles(formFiller.profile.resume_path).catch(() => {});
+          await page.waitForTimeout(1000);
+        }
+      }
+    },
   });
 }