Add toggleable wire:navigate SPA navigation with prefetching

Implement instance-wide SPA navigation toggle that enables smooth page transitions with prefetching on hover. Excludes terminal links which require full page lifecycle for WebSocket connections. Adds defensive checks to global-search component for SPA navigation compatibility.

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

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

database/migrations/2025_12_17_000001_add_is_wire_navigate_enabled_to_instance_settings_table.php

@@ -0,0 +1,28 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('instance_settings', function (Blueprint $table) {
+            $table->boolean('is_wire_navigate_enabled')->default(true);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('instance_settings', function (Blueprint $table) {
+            $table->dropColumn('is_wire_navigate_enabled');
+        });
+    }
+};