feat: modularize external providers

Tiku.Application/Tenancy/TenantExternalProviderModels.cs

@@ -0,0 +1,65 @@
+using System.Text.Json;
+using Tiku.Domain.Tenancy;
+
+namespace Tiku.Application.Tenancy;
+
+public sealed record TenantExternalProviderAccount(
+    Guid TenantId,
+    TenantExternalProviderCapability Capability,
+    string Provider,
+    TenantExternalProviderStatus Status,
+    string? DisplayName,
+    JsonElement ConfigPublic,
+    JsonElement SecretPayload,
+    string? SecretRef,
+    int Priority,
+    JsonElement Metadata);
+
+public sealed record UpsertTenantExternalProviderCommand(
+    TenantExternalProviderCapability Capability,
+    string Provider,
+    TenantExternalProviderStatus Status,
+    string? DisplayName,
+    string? SecretRef,
+    int? Priority,
+    JsonElement ConfigPublic,
+    JsonElement Metadata);
+
+public sealed record TenantExternalProviderItem(
+    Guid Id,
+    TenantExternalProviderCapability Capability,
+    string Provider,
+    TenantExternalProviderStatus Status,
+    string? DisplayName,
+    string? SecretRef,
+    int Priority,
+    JsonElement ConfigPublic,
+    JsonElement Metadata,
+    DateTimeOffset CreatedAt,
+    DateTimeOffset UpdatedAt);
+
+public interface ITenantExternalProviderConfigService
+{
+    Task<TenantExternalProviderAccount> GetActiveProviderAsync(
+        Guid tenantId,
+        TenantExternalProviderCapability capability,
+        string? provider = null,
+        CancellationToken cancellationToken = default);
+
+    Task<IReadOnlyCollection<TenantExternalProviderItem>> GetProvidersAsync(
+        Guid tenantId,
+        TenantExternalProviderCapability? capability = null,
+        string? provider = null,
+        int? limit = null,
+        CancellationToken cancellationToken = default);
+
+    Task<TenantExternalProviderItem> UpsertProviderAsync(
+        Guid tenantId,
+        UpsertTenantExternalProviderCommand command,
+        CancellationToken cancellationToken = default);
+}
+
+public sealed class TenantExternalProviderException(string message, string code) : Exception(message)
+{
+    public string Code { get; } = code;
+}