⚡ (fileUpload) New visibility option: "Public", "Private" or "Auto" (#1196)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Introduced file visibility options for uploaded files, allowing users
to set files as public or private.
- Added a new API endpoint for retrieving temporary URLs for files,
enhancing file accessibility.
- Expanded file upload documentation to include information on file
visibility settings.
- Updated URL validation to support URLs with port numbers and
"http://localhost".
- **Enhancements**
- Improved media download functionality by replacing the `got` library
with a custom `downloadMedia` function.
- Enhanced bot flow continuation and session start logic to support a
wider range of reply types, including WhatsApp media messages.
- **Bug Fixes**
- Adjusted file path and URL construction in the `generateUploadUrl`
function to correctly reflect file visibility settings.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

apps/docs/openapi/viewer.json

@@ -7418,6 +7418,14 @@
               },
               "sizeLimit": {
                 "type": "number"
+              },
+              "visibility": {
+                "type": "string",
+                "enum": [
+                  "Auto",
+                  "Public",
+                  "Private"
+                ]
               }
             }
           }
@@ -10534,6 +10542,14 @@
                     "type": "string"
                   }
                 }
+              },
+              "visibility": {
+                "type": "string",
+                "enum": [
+                  "Auto",
+                  "Public",
+                  "Private"
+                ]
               }
             }
           }