Enable Discovery debug logging for production troubleshooting

- Add DISCOVERY_LOG_LEVEL=debug
- Add DISCOVERY_SHOW_PROGRESS=true
- Temporary changes for debugging InitializerProcessor fixes on production

tests/Framework/Metrics/MetricsFormatterTest.php

@@ -0,0 +1,130 @@
+<?php
+
+declare(strict_types=1);
+
+use App\Framework\Metrics\Formatters\JsonFormatter;
+use App\Framework\Metrics\Formatters\OpenMetricsFormatter;
+use App\Framework\Metrics\Formatters\PrometheusFormatter;
+use App\Framework\Metrics\Formatters\StatsDFormatter;
+use App\Framework\Metrics\MetricsCollection;
+
+it('formats metrics in Prometheus format', function () {
+    $collection = new MetricsCollection();
+    $collection->counter('http_requests_total', 1234, 'Total HTTP requests', ['method' => 'GET', 'status' => '200']);
+    $collection->gauge('memory_usage_bytes', 67108864, 'Memory usage in bytes');
+
+    $formatter = new PrometheusFormatter();
+    $output = $formatter->format($collection);
+
+    expect($output)->toContain('# HELP http_requests_total Total HTTP requests');
+    expect($output)->toContain('# TYPE http_requests_total counter');
+    expect($output)->toContain('http_requests_total{method="GET",status="200"} 1234');
+    expect($output)->toContain('# HELP memory_usage_bytes Memory usage in bytes');
+    expect($output)->toContain('# TYPE memory_usage_bytes gauge');
+    expect($output)->toContain('memory_usage_bytes 67108864');
+});
+
+it('formats metrics in OpenMetrics format', function () {
+    $collection = new MetricsCollection();
+    $collection->counter('http_requests_total', 1234, 'Total HTTP requests', ['method' => 'GET']);
+
+    $formatter = new OpenMetricsFormatter();
+    $output = $formatter->format($collection);
+
+    expect($output)->toContain('# HELP http_requests_total Total HTTP requests');
+    expect($output)->toContain('# TYPE http_requests_total counter');
+    expect($output)->toContain('http_requests_total{method="GET"} 1234');
+    expect($output)->toContain('# EOF');
+});
+
+it('formats metrics in JSON format', function () {
+    $collection = new MetricsCollection();
+    $collection->counter('requests', 100, 'Request count', ['endpoint' => '/api']);
+
+    $formatter = new JsonFormatter();
+    $output = $formatter->format($collection);
+
+    $data = json_decode($output, true);
+    expect($data)->toHaveKey('timestamp');
+    expect($data)->toHaveKey('metrics');
+    expect($data['metrics'])->toHaveCount(1);
+    expect($data['metrics'][0])->toMatchArray([
+        'name' => 'requests',
+        'value' => 100,
+        'type' => 'counter',
+        'help' => 'Request count',
+        'labels' => ['endpoint' => '/api'],
+    ]);
+});
+
+it('formats metrics in StatsD format', function () {
+    $collection = new MetricsCollection();
+    $collection->counter('api.requests', 42);
+    $collection->gauge('memory.usage', 1024.5, null, ['host' => 'server1']);
+
+    $formatter = new StatsDFormatter();
+    $output = $formatter->format($collection);
+
+    $lines = explode("\n", $output);
+    expect($lines)->toContain('api.requests:42|c');
+    expect($lines)->toContain('memory.usage:1024.5|g|#host:server1');
+});
+
+it('handles histogram metrics correctly', function () {
+    $collection = new MetricsCollection();
+    $collection->histogram(
+        'http_request_duration',
+        [
+            '0.1' => 100,
+            '0.5' => 200,
+            '1.0' => 250,
+            '+Inf' => 300,
+        ],
+        150.5,
+        300,
+        'HTTP request duration in seconds'
+    );
+
+    $formatter = new PrometheusFormatter();
+    $output = $formatter->format($collection);
+
+    expect($output)->toContain('# TYPE http_request_duration histogram');
+    expect($output)->toContain('http_request_duration_bucket{le="0.1"} 100');
+    expect($output)->toContain('http_request_duration_bucket{le="0.5"} 200');
+    expect($output)->toContain('http_request_duration_bucket{le="1.0"} 250');
+    expect($output)->toContain('http_request_duration_bucket{le="+Inf"} 300');
+    expect($output)->toContain('http_request_duration_sum 150.5');
+    expect($output)->toContain('http_request_duration_count 300');
+});
+
+it('escapes special characters in labels', function () {
+    $collection = new MetricsCollection();
+    $collection->counter('test', 1, null, [
+        'path' => '/api/test"quotes"',
+        'description' => "Line\nbreak",
+    ]);
+
+    $formatter = new PrometheusFormatter();
+    $output = $formatter->format($collection);
+
+    expect($output)->toContain('path="/api/test\\"quotes\\""');
+    expect($output)->toContain('description="Line\\nbreak"');
+});
+
+it('converts metrics collection to array', function () {
+    $collection = new MetricsCollection();
+    $collection->counter('test', 42, 'Test metric', ['env' => 'prod']);
+
+    $array = $collection->toArray();
+
+    expect($array)->toHaveKey('timestamp');
+    expect($array)->toHaveKey('metrics');
+    expect($array['metrics'])->toHaveCount(1);
+    expect($array['metrics'][0])->toMatchArray([
+        'name' => 'test',
+        'value' => 42,
+        'type' => 'counter',
+        'help' => 'Test metric',
+        'labels' => ['env' => 'prod'],
+    ]);
+});