fix(bookkeeping): journal search finds a voucher by its label, with a spinner while searching (#1808)

"Sök verifikationstext" only matched journal_entries.description, so typing
A209 never returned voucher A209 itself: only other vouchers whose text
mentioned it. Users read that as "the voucher is missing".

A label-shaped needle (A209, a 209, A-209) now also matches
voucher_series + voucher_number via a PostgREST OR (needle double-quoted so
commas/parentheses stay literal); other needles keep the plain description
ILIKE. parseVoucher accepts one space or hyphen between series and number.
The search box shows a spinner while a server-side search is in flight;
before, the only signal was the list dimming.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

lib/bookkeeping/__tests__/voucher-series-resolver.test.ts

@@ -176,12 +176,19 @@ describe('parseVoucher', () => {
     expect(parseVoucher('  a5 ')).toEqual({ series: 'A', number: 5 })
   })
 
+  it('accepts one space or hyphen between series and number (how users type it in search)', () => {
+    expect(parseVoucher('A 209')).toEqual({ series: 'A', number: 209 })
+    expect(parseVoucher('A-209')).toEqual({ series: 'A', number: 209 })
+    expect(parseVoucher('a-1')).toEqual({ series: 'A', number: 1 })
+  })
+
   it('returns null for malformed input', () => {
     expect(parseVoucher('')).toBeNull()
     expect(parseVoucher('-')).toBeNull()
     expect(parseVoucher('123')).toBeNull()
     expect(parseVoucher('AA1')).toBeNull()
     expect(parseVoucher('A0')).toBeNull()
-    expect(parseVoucher('A-1')).toBeNull()
+    expect(parseVoucher('A--1')).toBeNull()
+    expect(parseVoucher('A  1')).toBeNull()
   })
 })

lib/bookkeeping/voucher-series-resolver.ts

@@ -107,15 +107,17 @@ export function formatVoucher(entry: {
 
 /**
  * Parse a formatted voucher label back into its parts. Returns null when the
- * input does not match the expected shape (single uppercase letter followed
- * by a positive integer). Use for filter inputs / search.
+ * input does not match the expected shape: a single letter followed by a
+ * positive integer, optionally separated by one space or hyphen ("A209",
+ * "a 209", "A-209"). Use for filter inputs / search: these are the shapes
+ * users type when they look for a voucher by its number.
  */
 export function parseVoucher(
   formatted: string,
 ): { series: string; number: number } | null {
   if (typeof formatted !== 'string') return null
   const trimmed = formatted.trim().toUpperCase()
-  const match = trimmed.match(/^([A-Z])(\d+)$/)
+  const match = trimmed.match(/^([A-Z])[ -]?(\d+)$/)
   if (!match) return null
   const number = parseInt(match[2], 10)
   if (!Number.isFinite(number) || number <= 0) return null