feat: max-bot-test initial — full surface coverage

- Slim 4 PSR-15 webhook, PHP-DI 7, Symfony Console 8
- 13 update handlers, 30+ command scenarios, all 7 button types
- Composer pulls pkirillw/max-bot-api-php from GitHub vcs
- Multi-stage Dockerfile (php-fpm 8.4-alpine) + nginx
- docker-compose.yml targets server (npm_default external)
- docker-compose.override.yml for local dev (gitignored)
- .gitea/workflows/deploy.yml mirrors ghost-blog-bot pattern

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tests/Unit/ParsedCommandTest.php

@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Unit;
+
+use App\Util\ParsedCommand;
+use PHPUnit\Framework\TestCase;
+
+final class ParsedCommandTest extends TestCase
+{
+    public function testParseSimpleCommand(): void
+    {
+        $cmd = ParsedCommand::parse('/help');
+        self::assertNotNull($cmd);
+        self::assertSame('help', $cmd->name);
+        self::assertSame([], $cmd->args);
+        self::assertSame('', $cmd->tail);
+    }
+
+    public function testParseCommandWithArgs(): void
+    {
+        $cmd = ParsedCommand::parse('/chat 123');
+        self::assertNotNull($cmd);
+        self::assertSame('chat', $cmd->name);
+        self::assertSame(['123'], $cmd->args);
+        self::assertSame('123', $cmd->tail);
+        self::assertSame(123, $cmd->argInt(0));
+    }
+
+    public function testParseColonSyntaxExtractsParam(): void
+    {
+        $cmd = ParsedCommand::parse('/bot_patch:NewName');
+        self::assertNotNull($cmd);
+        self::assertSame('bot_patch', $cmd->name);
+        self::assertSame(['NewName'], $cmd->args);
+    }
+
+    public function testParseReturnsNullForPlainText(): void
+    {
+        self::assertNull(ParsedCommand::parse('hello'));
+        self::assertNull(ParsedCommand::parse(''));
+        self::assertNull(ParsedCommand::parse('   '));
+    }
+}