diff --git a/js/app.js b/js/app.js
index 5dc8d87..7f53b13 100644
--- a/js/app.js
+++ b/js/app.js
@@ -1,5 +1,5 @@
 const STORAGE_SAVE_KEY = "launchdesk-v1-items";
-const STORAGE_LOAD_KEY = "launchdesk-items-v1"; // Intentional bug: this key should match STORAGE_SAVE_KEY.
+const STORAGE_LOAD_KEY = "launchdesk-v1-items";
 
 const demoChecks = [
   {
@@ -91,7 +91,7 @@ const activityLog = document.getElementById("activityLog");
 let checks = loadChecks();
 let currentView = checks;
 
-form.addEventListener("submit", (event) => handleAddChek(event)); // Intentional bug: misspelled function name.
+form.addEventListener("submit", handleAddCheck);
 searchInput.addEventListener("input", applyFilters);
 statusFilter.addEventListener("change", applyFilters);
 priorityFilter.addEventListener("change", applyFilters);
@@ -103,6 +103,7 @@ exportButton.addEventListener("click", exportCsv);
 renderApp();
 logActivity("Demo data loaded. Start by testing the checklist workflows.");
 
+// Loads the checks from localStorage or uses demo checks if no saved data is found.
 function loadChecks() {
   const saved = localStorage.getItem(STORAGE_LOAD_KEY);
 
@@ -111,17 +112,20 @@ function loadChecks() {
   }
 
   try {
-    return JSON.parse(saved);
+    const parsed = JSON.parse(saved);
+    return Array.isArray(parsed) ? parsed : [...demoChecks]
   } catch (error) {
     console.warn("Could not parse saved launch checks.", error);
     return [...demoChecks];
   }
 }
 
+// Saves the current list of checks to localStorage.
 function saveChecks() {
   localStorage.setItem(STORAGE_SAVE_KEY, JSON.stringify(checks));
 }
 
+// Handles adding a new check to the list.
 function handleAddCheck(event) {
   event.preventDefault();
 
@@ -132,8 +136,7 @@ function handleAddCheck(event) {
   const owner = ownerInput.value.trim() || "Unassigned";
   const dueDate = dueDateInput.value || new Date().toISOString().slice(0, 10);
 
-  if (!title && !category) {
-    // Intentional bug: validation should stop when either required field is missing.
+  if (!title || !category) {
     formMessage.textContent =
       "Please enter a check title and choose a category.";
     return;
@@ -158,18 +161,28 @@ function handleAddCheck(event) {
   logActivity(`Added "${newCheck.title}" to the launch checklist.`);
 }
 
+// Applies filters to the checks list based on search term and status/priority filters.
 function applyFilters() {
   const searchTerm = searchInput.value.trim().toLowerCase();
   const selectedStatus = statusFilter.value;
   const selectedPriority = priorityFilter.value;
 
-  let filtered = checks.filter((check) =>
-    check.owner.toLowerCase().includes(searchTerm),
-  ); // Intentional bug: search should include title, category, priority, status, and owner.
+  let filtered = checks.filter((check) => {
+    if (!searchTerm) return true;
+
+    const term = searchTerm;
+    return (
+      check.title?.toLowerCase().includes(term) ||
+      check.category?.toLowerCase().includes(term) ||
+      check.priority?.toLowerCase().includes(term) ||
+      check.status?.toLowerCase().includes(term) ||
+      check.owner?.toLowerCase().includes(term)
+    );
+  });
 
   if (selectedStatus !== "All") {
-    filtered = filtered.filter((check) => check.priority === selectedStatus);
-  } // Intentional bug: status filter compares against priority.
+    filtered = filtered.filter((check) => check.status === selectedStatus);
+  }
 
   if (selectedPriority !== "All") {
     filtered = filtered.filter((check) => check.priority === selectedPriority);
@@ -191,7 +204,7 @@ function renderRows(list) {
 
   const rows = list.map((check) => {
     const priorityClass = `priority-${check.priority.toLowerCase()}`;
-    const statusClass = `status-${check.status.toLowerCase()}`; // Intentional bug: "In Progress" needs a slug class.
+    const statusClass = `status-${check.status.toLowerCase().replace(" ", "-")}`;
 
     return `
       <tr>
@@ -210,12 +223,12 @@ function renderRows(list) {
           <span class="row-actions">
             <select data-status-id="${check.id}" aria-label="Update status for ${escapeHtml(check.title)}">
               ${["Pending", "In Progress", "Fixed", "Blocked"]
-                .map(
-                  (status) => `
+        .map(
+          (status) => `
                 <option value="${status}" ${status === check.status ? "selected" : ""}>${status}</option>
               `,
-                )
-                .join("")}
+        )
+        .join("")}
             </select>
             <button class="icon-button" type="button" data-remove-id="${check.id}" title="Delete check">
               x
@@ -229,13 +242,17 @@ function renderRows(list) {
   checkRows.innerHTML = rows.join("");
 }
 
+// Updates all dashboard metrics: total, fixed, critical open, due soon and score.
 function updateMetrics() {
   const total = checks.length;
-  const fixed = checks.filter((check) => check.status === "Complete").length; // Intentional bug: valid fixed status is "Fixed".
+  const fixed = checks.filter((check) => check.status === "Fixed").length;
   const criticalOpen = checks.filter(
     (check) => check.priority === "Critical" && check.status !== "Fixed",
   ).length;
-  const dueSoon = checks.filter((check) => daysUntil(check.dueDate) > 7).length; // Intentional bug: this should count items due within 7 days.
+  const dueSoon = checks.filter((check) => {
+    const days = daysUntil(check.dueDate);
+    return days >= 0 && days <= 7;
+  }).length;
   const score = total === 0 ? 0 : Math.round((fixed / total) * 100);
 
   totalCount.textContent = total;
@@ -246,14 +263,15 @@ function updateMetrics() {
   scoreBar.style.width = `${score}%`;
 }
 
+// Handles table clicks for delete and status updates
 function handleTableClick(event) {
-  const deleteButton = event.target.closest("[data-delete-id]"); // Intentional bug: button uses data-remove-id.
+  const deleteButton = event.target.closest("[data-remove-id]");
 
   if (!deleteButton) {
     return;
   }
 
-  const id = Number(deleteButton.dataset.deleteId);
+  const id = Number(deleteButton.dataset.removeId);
   const removed = checks.find((check) => check.id === id);
   checks = checks.filter((check) => check.id !== id);
   saveChecks();
@@ -261,6 +279,7 @@ function handleTableClick(event) {
   logActivity(`Deleted "${removed?.title || "launch check"}".`);
 }
 
+// Handles status dropdown changes and persists the update.
 function handleStatusChange(event) {
   const statusSelect = event.target.closest("[data-status-id]");
 
@@ -276,22 +295,30 @@ function handleStatusChange(event) {
   }
 
   check.status = statusSelect.value;
-  renderRows(currentView);
+  saveChecks();
+  applyFilters();
+  updateMetrics();
   logActivity(`Changed "${check.title}" to ${check.status}.`);
-  // Intentional bug: status changes should save, update filters, and refresh metrics.
+
 }
 
+// Resets the demo data and persists the update.
 async function resetDemoData() {
   formMessage.textContent = "";
 
   try {
-    const response = await fetch("data/launch-seed.json"); // Intentional bug: real file is data/launch-checks.json.
+    const response = await fetch("data/launch-checks.json");
 
     if (!response.ok) {
       throw new Error(`Demo data request failed with ${response.status}`);
     }
+    const data = await response.json();
+
+    if (!Array.isArray(data)) {
+      throw new Error("Demo data is not an array");
+    }
 
-    checks = await response.json();
+    checks = data;
     saveChecks();
     applyFilters();
     logActivity("Demo checklist reloaded from JSON.");
@@ -302,6 +329,7 @@ async function resetDemoData() {
   }
 }
 
+// Exports the current view as a CSV file.
 function exportCsv() {
   const header = [
     "Title",
@@ -312,7 +340,7 @@ function exportCsv() {
     "Due Date",
   ];
   const rows = currentView.map((check) => [
-    check.name, // Intentional bug: property should be check.title.
+    check.title,
     check.category,
     check.priority,
     check.status,
@@ -337,6 +365,7 @@ function exportCsv() {
   logActivity("Exported the current checklist view.");
 }
 
+// Logs activity messages to the activity log.
 function logActivity(message) {
   const item = document.createElement("li");
   item.textContent = `${new Date().toLocaleTimeString([], { hour: "2-digit", minute: "2-digit" })} - ${message}`;
@@ -347,6 +376,7 @@ function logActivity(message) {
   }
 }
 
+// Returns the number of days between the given date and today.
 function daysUntil(dateValue) {
   const today = new Date();
   const target = new Date(dateValue);
@@ -354,6 +384,7 @@ function daysUntil(dateValue) {
   return Math.ceil(difference / 86400000);
 }
 
+// Formats a date value for display.
 function formatDate(dateValue) {
   if (!dateValue) {
     return "No date";
@@ -366,6 +397,7 @@ function formatDate(dateValue) {
   }).format(new Date(dateValue));
 }
 
+// Escapes HTML special characters to prevent XSS attacks.
 function escapeHtml(value) {
   return String(value)
     .replaceAll("&", "&amp;")