Initial commit: Laravel OSINT platform

Multi-user OSINT investigation tool with owner-controlled per-user and
per-group access grants. Includes Sherlock, theHarvester, crt.sh, WHOIS,
and ip-api.com collectors wired through a pluggable Runner/queue pipeline,
investigation search, and printable/CSV/JSON reporting.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

tests/TestCase.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Tests;
+
+use Illuminate\Foundation\Testing\TestCase as BaseTestCase;
+
+abstract class TestCase extends BaseTestCase
+{
+    //
+}