fix: update range slider field component

docs/backlog.md

@@ -9,8 +9,6 @@
 Порядок согласован: C (контролы полей) → B (загрузка исходника) → E (download) →
 D (pipeline). Делать по одной, сверху вниз.
 
-- [ ] **C1. range slider field** — добавить поле для ввода цифр и кнопку сброса
-      значения
 - [ ] **C2. keep Aspect field** — пересчитывать второе поле, учитывать какое
       было изменено
 - [ ] **C3. пресеты размеров** — split-into-parts-png, resize (может еще

web/src/lib/components/fields/schema/RangeControl.svelte

@@ -1,5 +1,8 @@
 <script lang="ts">
 	import type { FieldSpec, NumberSpec, SliderSpec } from "$lib/registry-schema";
+	import { t } from "$lib/i18n/t";
+	import { Minus, Plus, RotateCcw } from "@lucide/svelte";
+	import IconButton from "$lib/components/ui/IconButton.svelte";
 	import Control from "./Control.svelte";
 
 	interface Props {
@@ -11,33 +14,97 @@
 	let { label, value, spec, onchange }: Props = $props();
 
 	const sp = $derived(spec as NumberSpec | SliderSpec);
+	const min = $derived(sp.min ?? 0);
+	const max = $derived(sp.max ?? 100);
+	const step = $derived(sp.step ?? 1);
 	const current = $derived(
 		typeof value === "number" && Number.isFinite(value) ? value : sp.default,
 	);
+	const atDefault = $derived(current === sp.default);
+	const atMin = $derived(current <= min);
+	const atMax = $derived(current >= max);
 
 	function handle(e: Event) {
-		onchange?.(Number((e.target as HTMLInputElement).value));
+		const n = (e.target as HTMLInputElement).valueAsNumber;
+		if (Number.isFinite(n)) onchange?.(n);
+	}
+
+	function stepBy(dir: 1 | -1) {
+		onchange?.(Math.min(max, Math.max(min, current + dir * step)));
 	}
 </script>
 
-<Control element="label" {label}>
+<Control {label}>
 	{#snippet trailing()}
-		<output>{current}</output>
+		<span class="range-trailing">
+			<IconButton
+				icon={Minus}
+				label={t("ui.decrease")}
+				variant="clear"
+				size="s"
+				disabled={atMin}
+				onclick={() => stepBy(-1)}
+			/>
+			<input
+				class="range-number"
+				aria-label={label}
+				type="number"
+				{min}
+				{max}
+				{step}
+				value={current}
+				oninput={handle}
+			/>
+			<IconButton
+				icon={Plus}
+				label={t("ui.increase")}
+				variant="clear"
+				size="s"
+				disabled={atMax}
+				onclick={() => stepBy(1)}
+			/>
+			<IconButton
+				icon={RotateCcw}
+				label={t("ui.reset")}
+				variant="clear"
+				size="s"
+				disabled={atDefault}
+				onclick={() => onchange?.(sp.default)}
+			/>
+		</span>
 	{/snippet}
 	<input
 		aria-label={label}
 		type="range"
-		min={sp.min ?? 0}
-		max={sp.max ?? 100}
-		step={sp.step ?? 1}
+		{min}
+		{max}
+		{step}
 		value={current}
 		oninput={handle}
 	/>
 </Control>
 
 <style>
-	output {
+	.range-trailing {
+		display: inline-flex;
+		align-items: center;
+		gap: var(--space-s);
+	}
+	.range-number {
+		width: calc(var(--space-xxxl) * 3);
+		padding: var(--space-m) var(--space-l);
+		background: var(--color-background);
+		border: var(--size-border) solid var(--color-border);
+		border-radius: var(--radius-s);
 		color: var(--color-text);
+		font: var(--font-size-m) var(--font-mono);
+		text-align: center;
+		appearance: textfield;
+	}
+	.range-number::-webkit-outer-spin-button,
+	.range-number::-webkit-inner-spin-button {
+		appearance: none;
+		margin: 0;
 	}
 	input[type="range"] {
 		width: 100%;