feat: add main features

Agents for developpement added + frontend add + backend added. Git viewer created + agent and template creator + layout and project creator

frontend/src/shared/ui/Toolbar.tsx

@@ -0,0 +1,27 @@
+/** Toolbar — a thin horizontal action bar (LD). */
+
+import { cn } from "../lib/cn";
+
+export interface ToolbarProps extends React.HTMLAttributes<HTMLDivElement> {
+  /** Push trailing children to the right with an auto margin. */
+  justify?: "start" | "between" | "end";
+}
+
+const JUSTIFY = {
+  start: "justify-start",
+  between: "justify-between",
+  end: "justify-end",
+} as const;
+
+/** A flex row for grouping buttons/controls with consistent spacing. */
+export function Toolbar({ justify = "start", className, children, ...rest }: ToolbarProps) {
+  return (
+    <div
+      role="toolbar"
+      className={cn("flex items-center gap-2", JUSTIFY[justify], className)}
+      {...rest}
+    >
+      {children}
+    </div>
+  );
+}