Updated ReadEmailQuery to return a new response type,
ReadEmailQueryResponse, which includes both email data
and metadata (e.g., LastSync). Added the Account property
to ReadEmailQuery for specifying the email account.
Refactored ReadEmailQueryHandler to:
- Use IImapEmailService to fetch LastSync metadata.
- Return ReadEmailQueryResponse instead of a collection
of ReceivedEmailDto.
Introduced ReadEmailQueryResponse class to encapsulate
LastSync and Emails properties.
Updated EmailController to handle the new response
structure, ensuring compatibility with the updated
ReadEmailQuery and its handler.
Replaced `IMemoryCache` with a thread-safe `ConcurrentDictionary`
for managing IMAP sync dates in `LimilabsImapEmailService`. Added
`GetLastImapSyncDate` and `SetLastImapSyncDate` methods to handle
cache operations. Updated the `IImapEmailService` interface to
include `GetLastImapSyncDate`. Simplified the `MarkAsSeenAsync`
method signature for better readability. Introduced a private
record type `ImapCacheKey` to encapsulate cache keys.
Replaced `FetchEmailsAsync` with `SyncEmailsAsync` in `IImapEmailService` to simplify email synchronization. Updated method signatures to use `DateFilter` and added default parameters for `folder` and `cancel`.
Refactored `LimilabsImapEmailService` to remove client-side filtering logic and delegate storage to `IRepository<ReceivedEmail>`. Simplified IMAP search criteria to focus on date-based filtering and added checks to skip already-synced emails.
Updated `EmailSyncWorker` to use the new `SyncEmailsAsync` method. Removed unused code, streamlined exception handling, and improved maintainability by reducing complexity and focusing on server-side filtering.
Replaced `IMailRepository` with `IReceivedEmailRepository` to improve modularity and functionality. Updated `IReceivedEmailRepository` to make the `EmailAccount` parameter optional in the `FindAsync` method.
Added `ReceivedEmailRepository` with advanced filtering capabilities, including account, flags, text, UID, date, and recipient filters. Implemented deferred materialization for recipient filtering due to EF Core limitations.
Registered `IReceivedEmailRepository` in dependency injection. Updated `ReadEmailQueryHandler` to use the new repository. Improved query performance by applying filters conditionally.
Renamed the `IMailRepository` interface to `IReceivedEmailRepository`
to better reflect its purpose. Added a new `FindAsync` method to
the interface, which supports searching for received emails using
a `MailSearchFilter`, an `EmailAccount`, and an optional
`CancellationToken`. The method returns a `Task` resolving to
an `IEnumerable<ReceivedEmail>`.
Introduced a new `IMailRepository` interface to abstract email-fetching logic, replacing the direct dependency on `IImapEmailService` in `ReadEmailQueryHandler`. Updated `ReadEmailQueryHandler` to use `IMailRepository` for querying emails and added `IMapper` for mapping entities to DTOs.
Modified the constructor of `ReadEmailQueryHandler` to inject `IMailRepository`, `IMapper`, and renamed `IRepository<EmailAccount>` to `EmailAccountRepo`. Replaced `IImapEmailService.FetchEmailsAsync` with `IMailRepository.FindAsync` in the handler's `Handle` method.
Wrapped all changes in `#if NET` preprocessor directives to ensure compatibility with specific build configurations. These changes improve modularity, testability, and separation of concerns.
Renamed `FetchEmailsQuery` to `ReadEmailQuery` across the codebase, including its handler, validator, and usages in `EmailController`. Updated method signatures, dependencies, and XML documentation to reflect the new naming convention. Adjusted `ILogger` dependency in the handler to match the renamed class.
- FetchEmailsQuery, MarkEmailAsSeenCommand, PublishEmailCommand: resolve EmailAccount
via IRepository<EmailAccount> instead of dispatching GetEmailAccountQuery through ISender
- Swap InvalidOperationException for BadRequestException when IMAP server is not configured
- Add ILogger to handlers; warn when multiple accounts match the lookup criteria
- EmailAccountsOptions.Accounts now typed as IEnumerable<EmailAccountModificationDto>
instead of IEnumerable<EmailAccount> to decouple config from domain entity
- EmailMappingProfile: add EmailAccount <-> EmailAccountDto/EmailAccountModificationDto maps
- Rename GetSenderQuery to GetEmailAccountQuery with updated return type (IEnumerable<EmailAccountDto>)
- Handler now queries IRepository<EmailAccount> directly instead of chaining MediatR dispatches
- Add EmailAccountModificationCommand for create/update/delete operations on email accounts
- Update GetSenderQueryValidator to reference renamed query type
- Remove exclusive Id/Username validation rule (now handled by repo query logic)
Added `CreateAsync` for bulk entity creation and `UpsertAsync`
and `UpsertSingleAsync` for upsert operations in `IRepository`
and `Repository`. Improved error handling in `UpdateSingleAsync`
and `DeleteSingleAsync` by throwing `NotFoundException` when no
matching entity is found. Refactored `FindAsync` and `UpdateAsync`
for better readability and performance. Cleaned up formatting in
`DeleteAsync`.
Replaced the `EmailAccountDto` class with the `EmailAccount` class across the codebase to consolidate the `EmailAccount` entity into the domain layer. Updated namespaces, method signatures, property types, and test cases to reflect this change.
Moved `EmailAccount` from `DigitalData.MessagingService.Application.Common.Dto` to `DigitalData.MessagingService.Domain.Entities`. Updated XML documentation and removed redundant project file entries. Adjusted namespaces for related queries, validators, and commands to align with the new structure.
These changes improve separation of concerns and align with domain-driven design principles.
Replaced `DigitalData.MessagingService.Abstraction` with
`DigitalData.MessagingService.Application.Common.Dto` and
`DigitalData.MessagingService.Application.Common.Dto.MailSearch`
to improve modularity and organization.
Removed the `Abstraction` project and updated all references
to use the `Application` project. Updated namespaces, `using`
directives, and dependencies across the codebase.
Refactored interfaces, commands, queries, validators, and
services to use the new DTOs. Updated RabbitMQ integration,
AutoMapper profiles, background services, and tests to align
with the new structure.
Performed general cleanup by removing redundant `using`
directives and obsolete references.
Introduced conditional compilation using `#if NET` directives to
enable support for multiple frameworks (`net462`, `net480`, and
`net8.0`). Updated the project file to support multi-targeting
and added framework-specific dependencies conditionally.
Refactored namespaces, interfaces, classes, validators, and
handlers to ensure compatibility with targeted frameworks.
Enhanced dependency injection setup and adjusted logic in
`GetSenderQueryHandler` for framework-specific behavior.
Ensured consistency and maintainability by wrapping framework-
specific code blocks with `#if NET` directives.
Replaced `EmailAttachmentContext` with `EmailAttachmentDto` across the codebase to align with the updated DTO naming convention.
- Renamed `EmailAttachmentContext` to `EmailAttachmentDto`.
- Updated property types, method signatures, and return types to use `EmailAttachmentDto`.
- Modified XML documentation references to reflect the new class name.
- Updated `ReceivedEmailContext` to `ReceivedEmailDto` and adjusted related methods and properties.
- Refactored `FetchEmailsAsync` methods and handlers to use `ReceivedEmailDto`.
- Adjusted `BuildAttachmentsAsync` and attachment handling logic in `EmailController` and `LimilabsImapEmailService`.
This refactor ensures consistency and improves code clarity while maintaining functionality.
Consolidated email fetching endpoints by removing `FetchEmailUids`
and `FetchEmailByUid` endpoints and integrating their functionality
into the `FetchEmails` method. Introduced an `OnlyFilter` enum to
allow filtering responses for HTML body or UIDs. Removed related
methods (`FetchEmailUidsAsync`, `FetchEmailByUidAsync`) from
`IImapEmailService` and deleted associated query classes and
handlers.
Refactored `ReceivedEmailContext` to use `record` for immutability
and value-based equality. Added `SyncIntervalSeconds` to
`EmailAccountsOptions` for configuring IMAP sync intervals.
Introduced `EmailSyncWorker` as a background service for periodic
email synchronization. Registered `IMemoryCache` and integrated
caching in `LimilabsImapEmailService` to reduce redundant fetch
operations. Optimized `FetchEmailByUidAsync` to conditionally
handle attachments and improve performance.
Refactored logging and improved code readability by adopting modern
C# features like `record`, `with` expressions, and `IOptions`.
Performed general cleanup and streamlined method implementations.
Simplify IMAP email fetching API and refactor logic
Removed `markAsSeen` parameter from `FetchEmailsAsync` and
`FetchEmailByUidAsync` methods in `IImapEmailService` to
simplify the API. Updated `MailSearchFilter` to make `MaxCount`
nullable for greater flexibility.
Removed `markAsSeen` from `FetchEmailByUidQuery` and
`FetchEmailsQuery` records and their handlers. Deleted
`FetchEmailByUidQueryValidator` as it is no longer needed.
Refactored `LimilabsImapEmailService`:
- Introduced `FetchEmailUidsAsync` to centralize UID fetching logic.
- Simplified `FetchEmailByUidAsync` using a new helper method.
- Consolidated connection, authentication, and folder selection
into reusable private methods.
- Removed redundant code for search criteria and flag fetching.
Removed `IsSeen` from `ReceivedEmailContext` and improved
overall code readability and maintainability by reducing
duplication and centralizing logic.
Introduced `FetchEmailUidsQuery` to retrieve UIDs of matching
emails from an IMAP mailbox. Added the `FetchEmailUidsQuery`
record with properties for email account (`GetSenderQuery`)
and mail filtering (`MailSearchFilter`).
Implemented `FetchEmailUidsQueryHandler` to handle the query.
The handler validates the email account, ensures IMAP
configuration, and uses `IImapEmailService.FetchEmailUidsAsync`
to fetch UIDs. Added necessary `using` directives for
dependencies.
Introduced `FetchEmailByUidQuery` to fetch a single email by its
UID from an IMAP mailbox. The query includes properties for
email account, UID, folder, and attachment inclusion, with a
fluent method `WithUid(long uid)` to set the UID.
Added `FetchEmailByUidQueryHandler` to process the query,
leveraging `ISender` for account retrieval and `IImapEmailService`
for email fetching. Included error handling for missing accounts
and misconfigured IMAP settings.
Implemented `FetchEmailByUidQueryValidator` to validate the
query, ensuring the `Account` is not null, `Uid` is set and
greater than 0, and `Folder` is not empty.
Added `FetchEmailUidsAsync` to `IImapEmailService` for retrieving UIDs of emails matching a filter, optimizing scenarios where only identifiers are needed. Added `FetchEmailByUidAsync` to fetch a single email by UID, with optional attachment handling.
Implemented `FetchEmailUidsAsync` in `LimilabsImapEmailService` to connect to the IMAP server, construct search criteria, retrieve UIDs, and handle sorting and result limits. Added robust error handling for authentication and other failures.
Implemented `FetchEmailByUidAsync` in `LimilabsImapEmailService` to fetch email content and flags for a specific UID, map the data to `ReceivedEmailContext`, and handle errors with logging for non-critical failures.
The `MailSearchFilter` class was updated to remove the `HasAttachments` property, simplifying the filtering logic. Corresponding client-side filtering logic in `LimilabsImapEmailService` was also removed. The IMAP search query now defaults to `Expression.All` when no criteria are provided.
The `FetchEmails` method in `EmailController` was enhanced with a new optional `firstHtmlBodyOnly` parameter. This allows returning only the HTML body of the first email or a `404 Not Found` response if no emails match the criteria. These changes improve flexibility and simplify the codebase.
Consolidate `WithAttachments` behavior into `MailSearchFilter` to simplify the API and reduce redundancy.
- Removed `withAttachments` parameter from `FetchEmailsAsync` in `IImapEmailService`.
- Added `WithAttachments` property to `MailSearchFilter` to control attachment inclusion.
- Removed `WithAttachments` property from `FetchEmailsQuery` as it is now encapsulated in `MailSearchFilter`.
- Updated `FetchEmailsQueryHandler` to use `MailSearchFilter` for attachment handling.
- Refactored `LimilabsImapEmailService` to use `MailSearchFilter.WithAttachments` for mapping email data.
These changes improve maintainability and clarity by centralizing attachment-related options in `MailSearchFilter`.
Introduced a `withAttachments` parameter to the `FetchEmailsAsync` method in `IImapEmailService` and related layers, allowing callers to include or exclude attachment data when fetching emails. Updated `FetchEmailsQuery` and `FetchEmailsQueryHandler` to propagate this parameter.
Refactored `LimilabsImapEmailService` to conditionally process attachments and inline visuals based on the `withAttachments` flag, improving performance when attachments are not required. Replaced `Flag.Unseen` with `Expression.HasFlag(Flag.Unseen)` for better criteria handling. Cleaned up attachment-processing logic for improved readability and maintainability.
Replaced the old `SearchFilter` with the new `MailSearchFilter` model to enable more flexible and granular email search criteria. Introduced `DateFilter`, `UidFilter`, and `MailSortOrder` to support advanced filtering options such as date ranges, UID ranges, and sorting order. Updated `IImapEmailService` and `FetchEmailsQuery` to use the new models.
Added validators (`DateFilterValidator`, `MailSearchFilterValidator`, `UidFilterValidator`) to ensure input correctness. Refactored `LimilabsImapEmailService` to dynamically construct IMAP search queries based on the new filter properties, supporting unseen messages, text filters, and client-side attachment filtering.
Improved maintainability and scalability by cleaning up redundant code and leveraging the new models and validation framework.
Replaced individual parameters (`folder`, `unseenOnly`, `maxCount`) in `IImapEmailService` with a consolidated `SearchFilter` object to simplify method signatures and improve maintainability.
Renamed `MailQuery` to `SearchFilter` in `FetchEmailsQuery` for better clarity. Updated `FetchEmailsQueryHandler` and `LimilabsImapEmailService` to use the new `SearchFilter` object, ensuring consistent handling of folder selection, unread message filtering, and message count limits.
Improved logging in `LimilabsImapEmailService` to reflect the updated `SearchFilter` structure.
Moved the `Folder` property from `FetchEmailsQuery` to the
`MailQuery` record to better encapsulate query parameters.
Updated `FetchEmailsQueryHandler` to use `MailQuery.Folder`
for improved modularity. Simplified UID limiting logic in
`LimilabsImapEmailService` by replacing `Take().ToList()`
with the more concise `[.. Take()]` syntax.
Refactored `FetchEmailsQuery` to encapsulate filtering and retrieval parameters (`UnseenOnly` and `MaxCount`) within a nested `MailQuery` record for better organization. Updated `FetchEmailsQueryHandler` to use the new structure.
Simplified `EmailController` endpoints:
- Replaced multiple query parameters in `FetchEmails` with a single `FetchEmailsQuery` object.
- Replaced multiple parameters in `MarkAsSeen` with a `MarkEmailAsSeenCommand` object.
- Adjusted the HTTP route for `MarkAsSeen` from `"{uid}/seen"` to `"seen"`.
Updated XML documentation to reflect these changes, improving maintainability and scalability.
Introduced IMAP functionality to enable fetching emails from an
IMAP server and marking messages as seen. Updated the
`EmailAccountDto` class with IMAP-related properties
(`ImapServer`, `ImapPort`, `ImapUseSsl`) for configuration.
Added `ReceivedEmailContext` to represent received emails and
created the `IImapEmailService` interface with methods
`FetchEmailsAsync` and `MarkAsSeenAsync`. Implemented the
`LimilabsImapEmailService` class using Limilabs Mail.dll for
IMAP operations, including connection handling, email fetching,
and marking messages as seen.
Added `FetchEmailsQuery` and `MarkEmailAsSeenCommand` with
handlers to encapsulate IMAP logic. Updated `EmailsController`
with new endpoints for fetching emails and marking messages as
seen. Registered `IImapEmailService` in `DependencyInjection`.
Included exception handling and logging for robust error
management during IMAP operations.
Refactor the codebase to rename `SendEmailCommand` and its associated components to `PublishEmailCommand` for improved clarity and consistency.
- Updated mapping in `EmailMappingProfile.cs` to use `PublishEmailCommand` instead of `SendEmailCommand`.
- Renamed `SendEmailCommand` to `PublishEmailCommand` in `PublishEmailCommand.cs`, including its methods like `WithAttachments`.
- Renamed `SendEmailCommandHandler` to `PublishEmailCommandHandler` and updated its method signature to handle the new command.
- Renamed `SendEmailCommandValidator` to `PublishEmailCommandValidator` and updated validation rules accordingly.
- Updated the `SendEmail` action in `EmailsController.cs` to accept `PublishEmailCommand` instead of `SendEmailCommand`.
These changes ensure consistency across the codebase and better reflect the purpose of the command.
Enhanced the email-sending workflow to support attachments:
- Updated `SendEmailCommand` with an `Attachments` property.
- Added `WithAttachments` method to handle attachment initialization.
- Modified `EmailsController` to accept file uploads via `IFormFileCollection`.
- Implemented `BuildAttachmentsAsync` to process uploaded files.
- Updated `EmailMappingProfile` to map `Attachments` to `EmailContext`.
- Adjusted `SendEmail` endpoint to consume `multipart/form-data`.
- Enhanced `SendEmail` response to include the queued event ID.
- Updated project file to include Swagger infrastructure folder.
These changes enable handling of email attachments and improve API functionality.
The `EmailMappingProfile` class was updated to modify the mapping
configuration between `SendEmailCommand` and `EmailContext`.
A `.ForMember` configuration was added to explicitly ignore the
`Sender` property in the destination (`EmailContext`) during the
mapping process. This ensures that `Sender` is not mapped from
the source object and must be set separately.
Simplified the `SendEmailAsync` method in the `IEmailService`
interface to accept a single `EmailContext` object instead of
multiple parameters. Updated the `SendingEmailConsumer` and
`LimilabsEmailService` classes to align with this change.
In `LimilabsEmailService`, refactored email construction logic
to use properties from the `EmailContext` object, including
`Sender`, `Recipients`, `Subject`, `Body`, and `IsHtml`.
Updated `ConnectAndAuthenticateSmtpAsync` to use the `Sender`
property from `EmailContext`.
These changes improve code readability, reduce parameter
complexity, and ensure consistency across the email service
implementation.
Replaced the `Email` record with the new `EmailContext` record to introduce additional context and functionality in email handling. Updated property definitions to distinguish between .NET Framework (`set`) and other frameworks (`init`).
Modified `SendingEmailEvent` to use `EmailContext` for the `Mail` property. Updated mappings in `EmailMappingProfile` to map `SendEmailCommand` to `EmailContext`. Adjusted `SendEmailCommandHandler` to use `EmailContext` when mapping requests.
Refactored `EmailSender` to use `EmailContext` in its `Send` method, including updates to method signatures and documentation. Updated all related test classes (`EmailSenderTests`, `EmailSenderUrlOverloadTests`, `SendingEmailPublisherTests`) to validate the behavior of `EmailContext`, ensuring consistency and thorough testing of the transition.
These changes ensure compatibility across frameworks and improve the maintainability of the email handling process.
Refactored `Email` and `SendingEmailEvent` to use `record` types, consolidating email-related data into the `Email` class. Updated `SendEmailCommand` to return a `Guid` and simplified mapping logic in `EmailMappingProfile`. Adjusted `SendEmailCommandHandler` to construct `SendingEmailEvent` manually.
Updated `SendingEmailConsumer`, `EmailsController`, and `EmailSender` to reflect the new structure. Removed the old `Email` implementation. Improved logging to reference the `Mail` property.
Revised tests to align with the new structure, ensuring immutability and better separation of concerns.
This commit renames and refactors all instances of `OutgoingEmail` to `SendingEmail` across the codebase to improve terminology consistency and align with domain language.
- Renamed classes, interfaces, and records (e.g., `OutgoingEmailPublisher` → `SendingEmailPublisher`, `OutgoingEmailEvent` → `SendingEmailEvent`).
- Updated method signatures, parameters, and return types to use `SendingEmail`.
- Adjusted dependency injection registrations to reflect the new naming.
- Updated mappings in `EmailMappingProfile` to map `SendEmailCommand` to `SendingEmailEvent`.
- Refactored `SendEmailCommand` and its handler to work with `SendingEmailEvent`.
- Updated `EmailsController` to use `SendingEmailEvent` in the `SendEmail` action.
- Refactored integration tests to test `SendingEmailPublisher` and updated test data accordingly.
- Updated log messages, error handling, and comments to reflect the new terminology.
- Revised documentation and utility methods to use `SendingEmailEvent`.
This refactor ensures consistency, improves readability, and reduces ambiguity in the codebase.
The `DigitalData.MessagingService.Publisher.Abstraction` project has been removed, and its functionality has been merged into a new project named `DigitalData.MessagingService.Abstraction`.
- Updated namespaces from `Publisher.Abstraction` to `Abstraction` across all relevant files, including DTOs, interfaces, and classes.
- Modified the solution file to remove `Publisher.Abstraction` and add `Abstraction`, updating solution configurations and nested project mappings.
- Replaced project references to `Publisher.Abstraction` with `Abstraction` in all affected project files.
- Updated tests and integration tests to reflect the namespace and project changes.
- Refactored application-level files such as `EmailMappingProfile` and `DependencyInjection.cs` to use the new namespace.
This refactor simplifies the project structure and ensures consistency across the solution.
Refactored the `Email` and `OutgoingEmailEvent` classes to replace the `Recipient` property with a `Recipients` collection, enabling support for multiple recipients. Updated all related test cases, including `EmailSenderTests`, `EmailSenderUrlOverloadTests`, and `OutgoingEmailPublisherTests`, to reflect this change.
Moved the `EmailAccountDto` class and its references from the `DigitalData.MessagingService.Application.Common.Dtos` namespace to the `DigitalData.MessagingService.Publisher.Abstraction` namespace for better code organization. Updated `using` directives across affected files.
Removed unused `using` directives and updated the `Email` class's `ToEvent` method to map the new `Recipients` property. Adjusted test assertions to validate collections instead of single recipient strings.
Updated the `IEmailService` interface and related components to
support multiple recipients in the `SendEmailAsync` method.
- Replaced `Recipient` with `Recipients` in `SendEmailCommand`,
`OutgoingEmailEvent`, and `EmailsController`.
- Updated `SendEmailCommandValidator` to validate a collection
of recipients, ensuring at least one valid email address.
- Modified `LimilabsEmailService` to handle multiple recipients
by iterating over the collection and adding each to the email.
- Adjusted `OutgoingEmailConsumer` to process and log multiple
recipients.
- Updated logging and response structures to reflect the changes.
These changes enable the system to handle emails with multiple
recipients while maintaining proper validation and logging.
Reintroduced `EmailAccountDto` with conditional compilation to support both .NET and non-.NET environments. Updated `IEmailService` to accept `EmailAccountDto` as the sender, replacing reliance on pre-configured SMTP credentials.
Added `GetSenderQuery` and its handler to dynamically resolve email accounts based on `Id` or `Username`. Introduced `GetSenderQueryValidator` for validation, ensuring proper usage of the query.
Modified `SendEmailCommand` to include sender resolution via MediatR. Updated `OutgoingEmailEvent` to include sender information and adjusted `OutgoingEmailConsumer` and `LimilabsEmailService` to use the dynamically resolved sender.
Updated `EmailMappingProfile` to ignore the `Sender` property during mapping. Replaced `Name` with `Id` in `appsettings.Secrets.json` for email accounts. Removed the old `EmailAccountDto` folder and performed general cleanup and restructuring.
Updated the namespace in `IRepository.cs` and `Repository.cs`
from `DigitalData.MessagingService.Application.Common.Interfaces`
to `DigitalData.MessagingService.Application.Common.Interfaces.Repositories`.
This change improves code organization by grouping repository-related
interfaces and classes under a dedicated `Repositories` namespace.
Updated `using` directives accordingly to reflect the new structure.
Refactored `EmailAccountDto` to represent a single account with
immutable properties and added an `Id` field. Introduced
`EmailAccountsOptions` to manage multiple accounts and bound it
to the `EmailAccounts` configuration section.
Updated `DependencyInjection` to register `EmailAccountsOptions`
and removed the old single-account binding. Refactored
`LimilabsEmailService` to use `EmailAccountsOptions` and select
the appropriate account dynamically.
Replaced the `EmailAccount` section in `appsettings.Secrets.json`
with a new `EmailAccounts` section supporting multiple accounts.
Added a package reference for `Microsoft.Extensions.Options.
ConfigurationExtensions` to support the options pattern.
Reorganized project structure by introducing `core` and
`infrastructure` directories:
- Moved `Application` and `Domain` projects to `core`.
- Moved `Infrastructure` project to `infrastructure`.
Updated project references in `API`, `Infrastructure`, and
`Application` projects to reflect the new directory structure.
Added a new dependency on `Publisher.Abstraction` in the
`Application` project.
Reorganized the solution structure to align with a layered architecture:
- Replaced `src` folder with `core`, `infrastructure`, and `presentation`.
- Moved projects to their respective folders.
- Added `DigitalData.MessagingService.Publisher.Abstraction` project.
- Removed `DigitalData.MessagingService.Client` project.
Updated project configurations and nesting in the solution file.
Added `appsettings.Secrets.json` with RabbitMQ and email account settings:
- RabbitMQ configuration includes hostname, port, credentials, and queue/exchange details.
- Email configuration includes SMTP server details and credentials.
