Add function to retrieve company address as JSON and update invoice procedures

- Created a new function `fds__getCompanyAddressJson` to return a company's postal address as a structured JSON object.
- Modified stored procedures `fds__createInvoice`, `fds__setInvoice`, and `fds__prepInvoice` to include a new parameter `@SendToAddressJson` for handling the address data.
- Updated the invoice table and user-defined types to accommodate the new `SendToAddressJson` field.
- Ensured that the address data is properly retrieved and stored in the invoice records.

Fuchs/wwwroot/web/fis.req.css

@@ -629,4 +629,22 @@ table.if th.keep, table.if td.keep {
   padding: 0.2rem;
   border-top-left-radius: inherit;
   border-top-right-radius: inherit;
+}
+
+/* Conformity hint shown inside the structured recipient-address dialog (EN 16931 / DATEV). */
+.adr-conformity {
+  margin-top: 0.75rem;
+  padding: 0.6rem 0.75rem;
+  background: #f3f7fb;
+  border: 1px solid #cfe0f0;
+  border-radius: 4px;
+  font-size: 0.85rem;
+  line-height: 1.35;
+}
+.adr-conformity .hd {
+  font-weight: 600;
+  margin-bottom: 0.2rem;
+}
+.adr-conformity .tx {
+  color: #445;
 }