feat(api): humidity, CO2, current pressure and 24h pressure history

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

src/PressureHistory.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Weerscherm;
+
+/** Zet een getmeasure-body (scale=30min, type=Pressure) om naar een gesorteerde reeks punten. */
+final class PressureHistory
+{
+    public const HOURS = 24;
+
+    /**
+     * @param array<string|int, mixed> $body
+     * @return list<array{at: string, hpa: float}>
+     */
+    public static function map(array $body, \DateTimeZone $tz): array
+    {
+        $points = [];
+        foreach ($body as $timestamp => $values) {
+            if (!is_numeric($timestamp) || !is_array($values) || !isset($values[0]) || !is_numeric($values[0])) {
+                continue;
+            }
+            $points[(int) $timestamp] = (float) $values[0];
+        }
+        ksort($points);
+
+        $out = [];
+        foreach ($points as $ts => $hpa) {
+            $out[] = ['at' => (new \DateTimeImmutable('@' . $ts))->setTimezone($tz)->format(\DATE_ATOM), 'hpa' => $hpa];
+        }
+        return $out;
+    }
+}