feat: update configuration options to use Optional types and enhance documentation structure

app/config.py

@@ -60,9 +60,9 @@ class Settings(BaseSettings):
     imap2_delete_after_process: bool = False
 
     # Google Drive settings
-    google_drive_credentials_json: str = ""
-    google_drive_folder_id: str = ""
-    google_drive_delegate_to: str = ""  # Optional delegated user email
+    google_drive_credentials_json: Optional[str] = ""
+    google_drive_folder_id: Optional[str] = ""
+    google_drive_delegate_to: Optional[str] = ""  # Optional delegated user email
 
     # WebDAV settings
     webdav_url: Optional[str] = None

docs/GoogleDriveSetup.md

@@ -28,6 +28,7 @@ For a complete list of configuration options, see the [Configuration Guide](Conf
 3. Fill in the service account details and click "Create"
 4. Add appropriate roles (e.g., "Editor" for full access)
 5. Click "Continue" and then "Done"
+6. Note down the service account's email address (it will look like: `service-name@project-id.iam.gserviceaccount.com`)
 
 ### 3. Generate Service Account Key
 
@@ -37,13 +38,15 @@ For a complete list of configuration options, see the [Configuration Guide](Conf
 4. Choose JSON format and click "Create"
 5. The key file will be downloaded automatically
 
-### 4. Configure DocuNova
+### 4. Share Your Google Drive Folder with the Service Account
 
-1. Open the downloaded JSON key file
-2. Set the entire JSON content as the `GOOGLE_DRIVE_CREDENTIALS_JSON` environment variable
-3. For security, ensure the JSON is properly escaped if your deployment method requires it
+1. Navigate to the desired folder in Google Drive
+2. Right-click on the folder and select "Share"
+3. Enter the service account's email address that you noted down in step 2
+4. Set the permission to "Editor" (to allow the service account to create/upload files)
+5. Click "Send" to share the folder (you can uncheck "Notify people" as the service account won't receive emails)
 
-### Get Google Drive Folder ID
+### 5. Get Google Drive Folder ID
 
 To find your Google Drive folder ID:
 
@@ -52,6 +55,12 @@ To find your Google Drive folder ID:
 3. The string after "folders/" is your folder ID (in this example: `1a2b3c4d5e6f7g8h9i0j`)
 4. Set this value as `GOOGLE_DRIVE_FOLDER_ID` in your configuration
 
+### 6. Configure DocuNova
+
+1. Open the downloaded JSON key file
+2. Set the entire JSON content as the `GOOGLE_DRIVE_CREDENTIALS_JSON` environment variable
+3. For security, ensure the JSON is properly escaped if your deployment method requires it
+
 ### Domain-Wide Delegation (Optional)
 
 If you need the service account to access files on behalf of users in your Google Workspace:

docs/README.md

@@ -7,14 +7,14 @@ Welcome to the DocuNova documentation. This directory contains comprehensive gui
 - [User Guide](UserGuide.md) - How to use DocuNova's features and interface
 - [API Documentation](API.md) - Complete API reference for developers
 - [Deployment Guide](DeploymentGuide.md) - How to deploy DocuNova in various environments
-- [Configuration Guide](ConfigurationGuide.md) - All available configuration options, including:
-  - Dropbox integration
-  - Nextcloud integration 
-  - Paperless NGX integration
-  - Google Drive integration
-  - Authentication setup
-  - Email processing configuration
-- [Troubleshooting](Troubleshooting.md) - Solutions to common issues
+- [Configuration](ConfigurationMaster.md) - Overview of configuration options, including:
+  - [Configuration Guide](ConfigurationGuide.md) - Complete list of all available configuration parameters
+  - [Google Drive Setup](GoogleDriveSetup.md) - How to set up Google Drive integration
+  - [Dropbox Setup](DropboxSetup.md) - How to set up Dropbox integration
+  - [OneDrive Setup](OneDriveSetup.md) - How to set up Microsoft OneDrive/Graph integration
+  - [Amazon S3 Setup](AmazonS3Setup.md) - How to set up Amazon S3 integration
+- [Configuration Troubleshooting](ConfigurationTroubleshooting.md) - Solutions to common configuration issues
+- [Troubleshooting](Troubleshooting.md) - General troubleshooting and solutions to common issues
 
 ## Additional Resources