docs + adjusted format imported

src/uctovnictvo/docs/example.txt

@@ -0,0 +1,27 @@
+❯ grpcurl -plaintext -d '{
+  "adresar_id": 1,
+  "c_dokladu": "DOC123",
+  "datum": "01:10:2023",
+  "c_faktury": "INV123",
+  "obsah": "Sample content",
+  "stredisko": "Center A",
+  "c_uctu": "ACC123",
+  "md": "MD123",
+  "identif": "ID123",
+  "poznanka": "Sample note",
+  "firma": "AAA"
+}' localhost:50051 multieko2.uctovnictvo.Uctovnictvo/PostUctovnictvo
+{
+  "id": "3",
+  "adresarId": "1",
+  "cDokladu": "DOC123",
+  "datum": "2023-10-01",
+  "cFaktury": "INV123",
+  "obsah": "Sample content",
+  "stredisko": "Center A",
+  "cUctu": "ACC123",
+  "md": "MD123",
+  "identif": "ID123",
+  "poznanka": "Sample note",
+  "firma": "AAA"
+}

src/uctovnictvo/handlers/post_uctovnictvo.rs

@@ -10,7 +10,7 @@ pub async fn post_uctovnictvo(
     request: PostUctovnictvoRequest,
 ) -> Result<UctovnictvoResponse, Status> {
     // Parse the date string into a chrono::NaiveDate.
-    let datum = NaiveDate::parse_from_str(&request.datum, "%Y-%m-%d")
+    let datum = NaiveDate::parse_from_str(&request.datum, "%d:%m:%Y")
         .map_err(|e| Status::invalid_argument(format!("Invalid date: {}", e)))?;
 
     // Pass the NaiveDate value directly.