feat: Setup zero-downtime deployments for production and dev branches

- Created separate workflows for production and dev deployments
- Production branch → dk0.dev (port 3000)
- Dev branch → dev.dk0.dev (port 3002)
- Zero-downtime deployment pattern (start new, wait for health, remove old)
- Complete isolation between environments (separate containers, databases, networks)
- Cleaned up unused code and files:
  - Removed unused GhostEditor and ResizableGhostEditor components
  - Removed old/unused workflows and markdown files
  - Fixed docker-compose references
- Upgraded dependencies to latest compatible versions
- Fixed TypeScript errors in editor page
- Updated staging to use dev.dk0.dev domain

app/editor/page.tsx

@@ -251,19 +251,13 @@ function EditorPageContent() {
   };
 
   // Markdown components for react-markdown with security
-  const markdownComponents = {
-    a: ({
-      node: _node,
-      ...props
-    }: {
-      node?: unknown;
-      href?: string;
-      children?: React.ReactNode;
-    }) => {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  const markdownComponents: any = {
+    a: ({ node: _node, ...props }: { node?: unknown; href?: string; children?: React.ReactNode }) => {
       // Validate URLs to prevent javascript: and data: protocols
       const href = props.href || "";
       const isSafe =
-        href && !href.startsWith("javascript:") && !href.startsWith("data:");
+        href && typeof href === 'string' && !href.startsWith("javascript:") && !href.startsWith("data:");
       return (
         <a
           {...props}
@@ -277,18 +271,11 @@ function EditorPageContent() {
         />
       );
     },
-    img: ({
-      node: _node,
-      ...props
-    }: {
-      node?: unknown;
-      src?: string;
-      alt?: string;
-    }) => {
+    img: ({ node: _node, ...props }: { node?: unknown; src?: string; alt?: string }) => {
       // Validate image URLs
-      const src = props.src || "";
+      const src = props.src;
       const isSafe =
-        src && !src.startsWith("javascript:") && !src.startsWith("data:");
+        src && typeof src === 'string' && !src.startsWith("javascript:") && !src.startsWith("data:");
       // eslint-disable-next-line @next/next/no-img-element
       return isSafe ? <img {...props} src={src} alt={props.alt || ""} /> : null;
     },