feat(pagination): add server-side pagination support and controls

- Implement pagination control UI with page navigation and size selector
- Enable server-side callbacks for page changes and size adjustments
- Integrate pagination into Griddy component with data count handling

src/Griddy/editors/NumericEditor.tsx

@@ -0,0 +1,49 @@
+import { NumberInput } from '@mantine/core'
+import { useEffect, useState } from 'react'
+
+import type { BaseEditorProps } from './types'
+
+interface NumericEditorProps extends BaseEditorProps<number> {
+  max?: number
+  min?: number
+  step?: number
+}
+
+export function NumericEditor({ autoFocus = true, max, min, onCancel, onCommit, onMoveNext, onMovePrev, step = 1, value }: NumericEditorProps) {
+  const [inputValue, setInputValue] = useState<number | string>(value ?? '')
+
+  useEffect(() => {
+    setInputValue(value ?? '')
+  }, [value])
+
+  const handleKeyDown = (e: React.KeyboardEvent) => {
+    if (e.key === 'Enter') {
+      e.preventDefault()
+      onCommit(typeof inputValue === 'number' ? inputValue : Number(inputValue))
+    } else if (e.key === 'Escape') {
+      e.preventDefault()
+      onCancel()
+    } else if (e.key === 'Tab') {
+      e.preventDefault()
+      onCommit(typeof inputValue === 'number' ? inputValue : Number(inputValue))
+      if (e.shiftKey) {
+        onMovePrev?.()
+      } else {
+        onMoveNext?.()
+      }
+    }
+  }
+
+  return (
+    <NumberInput
+      autoFocus={autoFocus}
+      max={max}
+      min={min}
+      onChange={(val) => setInputValue(val ?? '')}
+      onKeyDown={handleKeyDown}
+      size="xs"
+      step={step}
+      value={inputValue}
+    />
+  )
+}