feat(129): order user notes module

CRUD notatek autorskich operatora per zamowienie z badge [N] na liscie
zamowien. Reuse istniejacej tabeli `order_notes` przez nowy
`note_type='user'` z `user_id` (FK->users SET NULL) i `author_name`
(snapshot). Sekcja `#notes` w "Wiadomosci i zalaczniki" w
`/orders/{id}` z inline edit form + delete przez
`OrderProAlerts.confirm`. Autoryzacja DB-level
(`WHERE user_id = :user_id`, rowCount=0 ⇒ 403) — bez admin override
(brak systemu rol w aplikacji).

- Migracja `20260514_000116_*.sql` (ADD COLUMN user_id + author_name +
  FK + indeks `idx_order_notes_type_order`); idempotentne z DDL
  no-op fallback.
- `OrderNotesService` (CRUD + walidacja body ≤ 2000 znakow); subquery
  `user_notes_count` w paginate; badge HTML w `toTableRow()`.
- 3 routy POST /orders/{id}/notes(/update|/delete).
- SCSS module `_order-notes.scss` + vanilla JS `order-notes.js`
  (inline edit toggle + delete confirm; idempotent guard).
- 9 kluczy i18n PL; PROJECT.md + ROADMAP.md + tech_changelog.md +
  db_schema.md zaktualizowane.

Follow-up: `php bin/migrate.php` + manualny smoke test (autor vs inny
user + badge na /orders/list).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

resources/scss/modules/_order-notes.scss

@@ -0,0 +1,112 @@
+// Phase 129-01: notatki autorskie operatora w szczegolach zamowienia + badge na liscie.
+
+.order-notes-badge {
+  display: inline-block;
+  margin-left: 6px;
+  padding: 1px 6px;
+  border-radius: 10px;
+  background: #eef2ff;
+  color: #4338ca;
+  font-size: 11px;
+  font-weight: 600;
+  line-height: 1.4;
+  text-decoration: none;
+  vertical-align: middle;
+  transition: background 0.15s ease;
+
+  &:hover {
+    background: #e0e7ff;
+    text-decoration: none;
+  }
+}
+
+.order-notes-subtitle {
+  margin: 0 0 6px;
+  font-size: 12px;
+  font-weight: 600;
+  letter-spacing: 0.04em;
+  text-transform: uppercase;
+  color: var(--c-muted, #64748b);
+}
+
+.order-user-notes {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+
+  .order-event--user {
+    border-left: 3px solid #6366f1;
+    padding-left: 8px;
+  }
+
+  .order-event__head {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 8px;
+    flex-wrap: wrap;
+  }
+
+  .order-event__meta {
+    font-size: 11px;
+    color: var(--c-muted, #64748b);
+  }
+
+  .order-event__actions {
+    display: inline-flex;
+    align-items: center;
+    gap: 8px;
+  }
+}
+
+.order-imported-notes {
+  .order-event--imported {
+    opacity: 0.75;
+    font-size: 12px;
+  }
+}
+
+.btn-link {
+  background: none;
+  border: 0;
+  padding: 0;
+  margin: 0;
+  font-size: 11px;
+  color: var(--c-primary, #2563eb);
+  cursor: pointer;
+  text-decoration: underline;
+
+  &:hover {
+    text-decoration: none;
+  }
+
+  &--danger {
+    color: #dc2626;
+  }
+}
+
+.order-note-form,
+.order-note-edit-form {
+  textarea {
+    width: 100%;
+    min-height: 60px;
+    resize: vertical;
+  }
+
+  .order-note-form__actions,
+  .order-note-edit-form__actions {
+    display: flex;
+    gap: 8px;
+    margin-top: 6px;
+  }
+}
+
+.order-note-edit-form {
+  margin-top: 6px;
+
+  .order-note-edit-form__actions {
+    display: flex;
+    gap: 8px;
+    margin-top: 6px;
+  }
+}