fix: clarify PDA quantity inputs

tests/input-placeholders.test.mjs

@@ -0,0 +1,44 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { readdir, readFile } from 'node:fs/promises'
+import { fileURLToPath } from 'node:url'
+import { join, relative } from 'node:path'
+
+const sourceRoot = fileURLToPath(new URL('../src', import.meta.url))
+
+async function vueFiles(directory) {
+	const entries = await readdir(directory, { withFileTypes: true })
+	const files = []
+	for (const entry of entries) {
+		if (entry.name === 'uni_modules') continue
+		const path = join(directory, entry.name)
+		if (entry.isDirectory()) files.push(...await vueFiles(path))
+		else if (entry.name.endsWith('.vue')) files.push(path)
+	}
+	return files
+}
+
+test('every editable PDA input and textarea provides an input hint', async () => {
+	const missing = []
+	for (const file of await vueFiles(sourceRoot)) {
+		const source = await readFile(file, 'utf8')
+		for (const match of source.matchAll(/<(input|textarea)\b[^>]*>/gs)) {
+			if (!/\s:?placeholder\s*=/.test(match[0])) {
+				const line = source.slice(0, match.index).split('\n').length
+				missing.push(`${relative(sourceRoot, file)}:${line}`)
+			}
+		}
+	}
+	assert.deepEqual(missing, [], `缺少 placeholder：${missing.join(', ')}`)
+})
+
+test('quantity inputs explain the valid package range', async () => {
+	const [dispatch, outbound, pallet] = await Promise.all([
+		readFile(join(sourceRoot, 'pages/dispatch/dispatch.vue'), 'utf8'),
+		readFile(join(sourceRoot, 'pages/outbound/outbound.vue'), 'utf8'),
+		readFile(join(sourceRoot, 'pages/pallet/pallet.vue'), 'utf8')
+	])
+	assert.match(dispatch, /:placeholder="`请输入 1-\$\{selectedRemaining\} 箱`"/)
+	assert.match(outbound, /:placeholder="`请输入 1-\$\{selectedRemaining\} 箱`"/)
+	assert.match(pallet, /:placeholder="`最多 \$\{line\.availablePackages\} 箱`"/)
+})