Enhance Tender Approval Filtering with Created Date Parameters

- Added new query parameters `created_from` and `created_to` to the tender approval endpoints for filtering by creation date using Unix timestamps.
- Updated the `GetByCompanyID` method in the repository and service layers to support the new filtering options.
- Modified the handler methods to parse and pass the new parameters, improving the flexibility of tender approval retrieval.
- Updated API documentation to reflect the new query parameters, ensuring clarity for API consumers.

cmd/web/docs/docs.go

@@ -6025,6 +6025,18 @@ const docTemplate = `{
                         "description": "Filter by status Enums(submitted, rejected)",
                         "name": "status",
                         "in": "query"
+                    },
+                    {
+                        "type": "integer",
+                        "description": "Filter by created date from (Unix timestamp)",
+                        "name": "created_from",
+                        "in": "query"
+                    },
+                    {
+                        "type": "integer",
+                        "description": "Filter by created date to (Unix timestamp)",
+                        "name": "created_to",
+                        "in": "query"
                     }
                 ],
                 "responses": {