fix: merge main, address code review feedback for security fix PR #816

- Merge origin/main into branch (resolve conflict in integrations_dashboard.html)
- Add defensive JSON parsing with try/except for integration.config
- Wrap tester() call in try/except to prevent 500 errors from bad config
- Add i18n key integrations.connection_test_failed_fallback in en.json
- Reference i18n key in template JS fallback message
- Update SECURITY_AUDIT.md: add fix date (2026-03-23), update doc date
- Remove accidental revert.sh file
- Fix missing MagicMock/patch imports in test file
- Add tests for invalid JSON config and tester exception error paths

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
Agent-Logs-Url: https://github.com/christianlouis/DocuElevate/sessions/daebb70e-059a-4601-8864-88eef49f99cf

frontend/static/js/claim.js

@@ -0,0 +1,44 @@
+/**
+ * claim.js — Claim-ownership UI helper for unowned documents.
+ *
+ * Usage: call initClaimOwnership(fileId, i18n) after DOMContentLoaded.
+ * The i18n object must contain:
+ *   confirm, success, failed
+ */
+function initClaimOwnership(fileId, i18n) {
+  var btn = document.getElementById('claim-btn');
+  var msg = document.getElementById('claim-msg');
+  if (!btn) return;
+
+  btn.addEventListener('click', function () {
+    if (!confirm(i18n.confirm)) return;
+    btn.disabled = true;
+    fetch('/api/files/' + fileId + '/claim', { method: 'POST' })
+      .then(function (r) { return r.json().then(function (d) { return { ok: r.ok, data: d }; }); })
+      .then(function (result) {
+        if (result.ok || (result.data && result.data.status === 'already_owned')) {
+          if (msg) {
+            msg.textContent = i18n.success;
+            msg.style.color = '#059669';
+            msg.style.display = msg.tagName === 'SPAN' ? 'inline' : 'block';
+          }
+          setTimeout(function () { location.reload(); }, 1200);
+        } else {
+          if (msg) {
+            msg.textContent = (result.data && result.data.detail) || i18n.failed;
+            msg.style.color = '#dc2626';
+            msg.style.display = msg.tagName === 'SPAN' ? 'inline' : 'block';
+          }
+          btn.disabled = false;
+        }
+      })
+      .catch(function () {
+        if (msg) {
+          msg.textContent = i18n.failed;
+          msg.style.color = '#dc2626';
+          msg.style.display = msg.tagName === 'SPAN' ? 'inline' : 'block';
+        }
+        btn.disabled = false;
+      });
+  });
+}