feat: clean tool page nav, add Import from Files on dropzone

- Removed Automate/Editor/Files links from top nav on tool pages,
  keeping only the breadcrumb + help + avatar for a cleaner look
- Added "Import from Files" link on the tool dropzone that navigates
  to the file library, letting users import previously processed files

apps/web/src/components/common/tool-dropzone.tsx

@@ -1,6 +1,7 @@
 import type { Tool } from "@snapotter/shared";
-import { FileImage } from "lucide-react";
+import { FileImage, FolderOpen } from "lucide-react";
 import { useMemo } from "react";
+import { Link } from "react-router-dom";
 import { useTranslation } from "@/contexts/i18n-context";
 import { format } from "@/lib/format";
 import { ICON_MAP } from "@/lib/icon-map";
@@ -71,6 +72,15 @@ export function ToolDropzone({
         acceptDescription={formatsDisplay ?? undefined}
       />
 
+      {/* Import from library */}
+      <Link
+        to="/files"
+        state={{ selectForTool: tool.id }}
+        className="inline-flex items-center gap-2 text-sm text-muted-foreground hover:text-foreground transition-colors"
+      >
+        <FolderOpen className="h-4 w-4" />
+        {t.toolPage.importFromFiles}
+      </Link>
     </div>
   );
 }

apps/web/src/components/layout/top-nav.tsx

@@ -195,30 +195,8 @@ export function TopNav({
       {/* Spacer */}
       <div className="flex-1" />
 
-      {/* Right: Contextual nav links (when breadcrumb) + help + avatar */}
+      {/* Right: help + avatar */}
       <div className="flex items-center gap-1">
-        {breadcrumb && (
-          <>
-            {navLinks
-              .filter((link) => link.href !== "/")
-              .map((link) => (
-                <Link
-                  key={link.href}
-                  to={link.href}
-                  className={cn(
-                    "px-3 py-1.5 rounded-md text-sm font-medium transition-colors",
-                    isDark
-                      ? "text-[#aaa] hover:text-[#e0e0e0] hover:bg-[#333]"
-                      : "text-muted-foreground hover:text-foreground hover:bg-muted",
-                  )}
-                >
-                  {link.label}
-                </Link>
-              ))}
-            <div className={cn("w-px h-5 mx-1", isDark ? "bg-[#444]" : "bg-border")} />
-          </>
-        )}
-
         <button
           type="button"
           onClick={onHelpClick}