feat: add Reset All button to EditControl panel

Add the missing "Reset All" functionality from Legacy Document Control
to the enhanced EditControl panel for complete feature parity.

## New Functionality
- Added "Reset All" button in Document Actions section
- Comprehensive reset functionality with user confirmation
- Resets font size, editing mode, unsaved changes, highlights
- Integrates with SectionManager, DocumentControls, and DebugControl
- Offers page reload as ultimate fallback for complete reset

## Implementation Details
- Button styled consistently with Legacy Document Control (🔄 Reset All)
- Uses #ffc107 background with #212529 text to match legacy styling
- Comprehensive confirmation dialog explains all actions
- Safe operation wrapper with proper error handling
- Graceful fallbacks when integrated components are unavailable

## Integration
- Deployed to both markitect system and deployment source
- Compatible with existing enhanced ControlBase architecture
- Maintains consistency with other EditControl actions
- Ready for immediate use in production environment

Users now have access to the familiar Reset All functionality
within the modern enhanced control panel system.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

markitect/static/js/controls/edit-control.js

@@ -88,6 +88,11 @@ class EditControl extends ControlBase {
                                 style="width: 100%; padding: 0.5rem; margin-bottom: 0.3rem; background: #17a2b8; color: white; border: none; border-radius: 3px; cursor: pointer; font-size: 0.8rem;">
                             📄 Export Document
                         </button>
+
+                        <button onclick="this.closest('.edit-control').editControl.resetAll()"
+                                style="width: 100%; padding: 0.5rem; margin-bottom: 0.3rem; background: #ffc107; color: #212529; border: none; border-radius: 3px; cursor: pointer; font-size: 0.8rem;">
+                            🔄 Reset All
+                        </button>
                     </div>
 
                     <!-- Navigation Tools -->
@@ -296,6 +301,69 @@ class EditControl extends ControlBase {
         URL.revokeObjectURL(url);
     }
 
+    /**
+     * Reset all changes and restore document to original state
+     */
+    resetAll() {
+        return this.safeOperation(() => {
+            // Show confirmation dialog
+            const confirmed = window.confirm(
+                'Reset all changes?\n\nThis will:\n' +
+                '• Restore document to original state\n' +
+                '• Clear all unsaved changes\n' +
+                '• Reset font size and other settings\n\n' +
+                'This action cannot be undone.'
+            );
+
+            if (!confirmed) {
+                this.showActionFeedback('🚫 Reset cancelled', '#6c757d');
+                return;
+            }
+
+            // Reset edit control state
+            this.fontSize = 16;
+            this.editingMode = 'view';
+            this.unsavedChanges = false;
+            this.lastSaveTime = null;
+
+            // Reset font size
+            this.applyFontSize();
+
+            // Clear any highlights
+            document.querySelectorAll('.edit-highlight').forEach(el => {
+                el.outerHTML = el.innerHTML;
+            });
+
+            // Try to reset sections if SectionManager is available
+            if (window.sectionManager && typeof window.sectionManager.resetAllSections === 'function') {
+                window.sectionManager.resetAllSections();
+            }
+
+            // Try to reset document controls if available
+            if (window.documentControls && typeof window.documentControls.resetAllChanges === 'function') {
+                window.documentControls.resetAllChanges();
+            }
+
+            // Clear any debug messages if debug control is available
+            if (window.debugControl && typeof window.debugControl.clearMessages === 'function') {
+                window.debugControl.clearMessages();
+            }
+
+            // Reload the page as ultimate fallback
+            if (window.confirm('Reload page to complete reset?')) {
+                window.location.reload();
+                return;
+            }
+
+            // Update the control display
+            this.buildContent();
+
+            // Show feedback
+            this.showActionFeedback('🔄 All changes reset', '#ffc107', '#212529');
+
+        }, null, 'resetAll');
+    }
+
     /**
      * Scroll to top of document
      */