fix: audit bugs + better error logging for searcher debugging

Bugs fixed:
- form_filler.mjs: add missing await on el.evaluate() in getLabel()
- analyze_ats.mjs: check job.apply_type instead of non-existent job.easy_apply
- status.mjs: fix typo "that run" → "in that run"
- README: add missing lock.mjs to project structure

Logging improvements:
- job_searcher.mjs: log browser creation, login steps, stack traces on error
- linkedin.mjs/wellfound.mjs: catch and log navigation failures per keyword
- browser.mjs: descriptive errors for Kernel and CDP connection failures

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

lib/browser.mjs

@@ -38,9 +38,19 @@ export async function createBrowser(settings, profileKey) {
   if (profileName) opts.profile = { name: profileName };
   if (kernelConfig.proxy_id) opts.proxy = { id: kernelConfig.proxy_id };
 
-  const kb = await kernel.browsers.create(opts);
+  let kb;
+  try {
+    kb = await kernel.browsers.create(opts);
+  } catch (e) {
+    throw new Error(`Kernel browser creation failed: ${e.message}`);
+  }
   const pw = await getChromium(playwrightPath);
-  const browser = await pw.connectOverCDP(kb.cdp_ws_url);
+  let browser;
+  try {
+    browser = await pw.connectOverCDP(kb.cdp_ws_url);
+  } catch (e) {
+    throw new Error(`CDP connection failed (browser ${kb.id}): ${e.message}`);
+  }
   const ctx = browser.contexts()[0] || await browser.newContext();
   const page = ctx.pages()[0] || await ctx.newPage();