refactor: Code cleanup and documentation updates

Bug fixes:
- Fix ticket ID extraction using URLSearchParams instead of split()
- Add error handling for query result in get_users.php
- Make Discord webhook URLs dynamic (use HTTP_HOST)

Code cleanup:
- Remove debug console.log statements from dashboard.js and ticket.js
- Add getTicketIdFromUrl() helper function to both JS files

Documentation:
- Update Claude.md: fix web server (nginx not Apache), add new notes
- Update README.md: add keyboard shortcuts, update setup instructions

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

assets/js/dashboard.js

@@ -5,6 +5,14 @@ function escapeHtml(text) {
     return div.innerHTML;
 }
 
+// Get ticket ID from URL (handles both /ticket/123 and ?id=123 formats)
+function getTicketIdFromUrl() {
+    const pathMatch = window.location.pathname.match(/\/ticket\/(\d+)/);
+    if (pathMatch) return pathMatch[1];
+    const params = new URLSearchParams(window.location.search);
+    return params.get('id');
+}
+
 /**
  * Toggle sidebar visibility on desktop
  */
@@ -32,19 +40,13 @@ document.addEventListener('DOMContentLoaded', function() {
 
 // Main initialization
 document.addEventListener('DOMContentLoaded', function() {
-    console.log('DOM loaded, initializing dashboard...');
-    
     // Check if we're on the dashboard page
     const hasTable = document.querySelector('table');
-    const isTicketPage = window.location.pathname.includes('/ticket/') || 
+    const isTicketPage = window.location.pathname.includes('/ticket/') ||
                          window.location.href.includes('ticket.php') ||
                          document.querySelector('.ticket-details') !== null;
     const isDashboard = hasTable && !isTicketPage;
     
-    console.log('Has table:', hasTable);
-    console.log('Is ticket page:', isTicketPage);
-    console.log('Is dashboard:', isDashboard);
-    
     if (isDashboard) {
         // Dashboard-specific initialization
         initStatusFilter();
@@ -324,8 +326,6 @@ function quickSave() {
         priority: parseInt(prioritySelect.value)
     };
     
-    console.log('Saving ticket data:', data);
-    
     fetch('/api/update_ticket.php', {
         method: 'POST',
         headers: {
@@ -335,9 +335,7 @@ function quickSave() {
         body: JSON.stringify(data)
     })
     .then(response => {
-        console.log('Response status:', response.status);
         return response.text().then(text => {
-            console.log('Raw response:', text);
             try {
                 return JSON.parse(text);
             } catch (e) {
@@ -346,7 +344,6 @@ function quickSave() {
         });
     })
     .then(result => {
-        console.log('Update result:', result);
         if (result.success) {
             // Update the hamburger menu display
             const hamburgerStatus = document.getElementById('hamburger-status');
@@ -365,9 +362,7 @@ function quickSave() {
                 statusDisplay.className = `status-${statusSelect.value}`;
                 statusDisplay.textContent = statusSelect.value;
             }
-            
-            console.log('Ticket updated successfully');
-            
+
             // Close hamburger menu after successful save
             const hamburgerContent = document.querySelector('.hamburger-content');
             if (hamburgerContent) {
@@ -391,15 +386,8 @@ function quickSave() {
 function saveTicket() {
     const editables = document.querySelectorAll('.editable');
     const data = {};
-    
-    let ticketId;
-    if (window.location.href.includes('?id=')) {
-        ticketId = window.location.href.split('id=')[1];
-    } else {
-        const matches = window.location.pathname.match(/\/ticket\/(\d+)/);
-        ticketId = matches ? matches[1] : null;
-    }
-    
+    const ticketId = getTicketIdFromUrl();
+
     editables.forEach(field => {
         if (field.dataset.field) {
             data[field.dataset.field] = field.value;
@@ -477,8 +465,6 @@ function loadTemplate() {
                 if (template.default_priority) {
                     document.getElementById('priority').value = template.default_priority;
                 }
-
-                console.log('Template loaded:', template.template_name);
             } else {
                 console.error('Failed to load template:', data.error);
                 toast.error('Failed to load template: ' + (data.error || 'Unknown error'), 4000);