add company stamp upload functionality for contract signing

- Introduced StampUpload component for uploading company stamp images.
- Integrated stamp upload in contract signing modal, supporting PNG and JPG formats.
- Implemented validation for file type and size (max 5 MB).
- Added visual feedback for drag-and-drop functionality.
- Updated contract-related pages to handle duplicate contract alerts and pricing notices.
- Enhanced contract expiry management with a nightly sweep service.
- Added unit tests for new features and updated existing tests for contract handling.

apps/edr-freight-web/backoffice/src/components/contracts/ContractDocumentEditorModal.tsx

@@ -9,7 +9,7 @@ import {
   Group,
   Loader,
   Modal,
-  Select,
+  // Select, // ponytail: unused now the validity dropdown below is commented out
   Stack,
   Text,
   Textarea,
@@ -25,6 +25,7 @@ import {
   Plus,
   Trash2,
 } from "lucide-react";
+import { DateInput } from "@mantine/dates";
 import type { Freight } from "@edr/types";
 
 import { contractsService } from "@/services/contracts.service";
@@ -75,8 +76,10 @@ export function ContractDocumentEditorModal({
   onClose,
   contractId,
   mode,
-  validityOptions = [],
-  validityLoading = false,
+  // ponytail: validityOptions/validityLoading fed the now-commented dropdown
+  // above — caller still passes them, left unread here for a quick revert.
+  // validityOptions = [],
+  // validityLoading = false,
   accepting = false,
   saving = false,
   onAccept,
@@ -93,7 +96,12 @@ export function ContractDocumentEditorModal({
   const [documentTitle, setDocumentTitle] = useState("");
   const [whereasClauses, setWhereasClauses] = useState<string[]>([]);
   const [articles, setArticles] = useState<EditableArticle[]>([]);
-  const [validityDays, setValidityDays] = useState<string | null>(null);
+  // const [validityDays, setValidityDays] = useState<string | null>(null);
+  // ponytail: client keeps flip-flopping the validity requirement — swapped
+  // the validity dropdown for explicit start/end dates, kept above commented
+  // instead of deleted so it's a one-line revert if they flip back.
+  const [validityStart, setValidityStart] = useState<Date | null>(null);
+  const [validityEnd, setValidityEnd] = useState<Date | null>(null);
 
   // Seed the editor from the loaded draft whenever the dialog (re)opens.
   useEffect(() => {
@@ -110,11 +118,11 @@ export function ContractDocumentEditorModal({
   }, [opened, draft]);
 
   // Default validity to the first configured option (accept mode).
-  useEffect(() => {
-    if (mode === "accept" && !validityDays && validityOptions.length > 0) {
-      setValidityDays(validityOptions[0].value);
-    }
-  }, [mode, validityDays, validityOptions]);
+  // useEffect(() => {
+  //   if (mode === "accept" && !validityDays && validityOptions.length > 0) {
+  //     setValidityDays(validityOptions[0].value);
+  //   }
+  // }, [mode, validityDays, validityOptions]);
 
   // Editing rights belong to the approver whose turn it is, so the server
   // decides per-caller — the client cannot derive this from the contract alone.
@@ -169,8 +177,13 @@ export function ContractDocumentEditorModal({
   const submit = () => {
     const snapshot = buildSnapshot();
     if (mode === "accept") {
-      const days = Number(validityDays);
-      if (!days) return;
+      // const days = Number(validityDays);
+      // if (!days) return;
+      if (!validityStart || !validityEnd) return;
+      const days = Math.ceil(
+        (validityEnd.getTime() - validityStart.getTime()) / (24 * 60 * 60 * 1000),
+      );
+      if (days <= 0) return;
       onAccept?.(days, snapshot);
     } else {
       onSaveEdit?.(snapshot);
@@ -181,7 +194,8 @@ export function ContractDocumentEditorModal({
   const canSubmit =
     hasArticles &&
     !locked &&
-    (mode === "edit" || Boolean(validityDays)) &&
+    // (mode === "edit" || Boolean(validityDays)) &&
+    (mode === "edit" || Boolean(validityStart && validityEnd)) &&
     !submitting;
 
   return (
@@ -375,7 +389,10 @@ export function ContractDocumentEditorModal({
 
           {mode === "accept" && (
             <>
-              {validityOptions.length > 0 ? (
+              {/* ponytail: client keeps changing this requirement — swapped
+                  the validity-period dropdown for explicit start/end dates,
+                  left the old block commented instead of deleted. */}
+              {/* {validityOptions.length > 0 ? (
                 <Select
                   label="Contract validity"
                   placeholder="Select a validity period"
@@ -391,7 +408,25 @@ export function ContractDocumentEditorModal({
                     ? "Loading validity periods…"
                     : "No validity periods are configured yet. Add them under Dropdown Settings."}
                 </Text>
-              )}
+              )} */}
+              <Group grow align="flex-start">
+                <DateInput
+                  label="Start date"
+                  placeholder="Contract validity start"
+                  value={validityStart}
+                  onChange={(v) => setValidityStart(v ? new Date(v) : null)}
+                  maxDate={validityEnd ?? undefined}
+                  clearable
+                />
+                <DateInput
+                  label="End date"
+                  placeholder="Contract validity end"
+                  value={validityEnd}
+                  onChange={(v) => setValidityEnd(v ? new Date(v) : null)}
+                  minDate={validityStart ?? undefined}
+                  clearable
+                />
+              </Group>
             </>
           )}