feat: Implement console session management with tenant and profile handling

- Add ConsoleSessionStore for managing console session state including tenants, profile, and token information.
- Create OperatorContextService to manage operator context for orchestrator actions.
- Implement OperatorMetadataInterceptor to enrich HTTP requests with operator context metadata.
- Develop ConsoleProfileComponent to display user profile and session details, including tenant information and access tokens.
- Add corresponding HTML and SCSS for ConsoleProfileComponent to enhance UI presentation.
- Write unit tests for ConsoleProfileComponent to ensure correct rendering and functionality.

src/StellaOps.Authority/StellaOps.Auth.Abstractions/StellaOpsTenancyDefaults.cs

@@ -0,0 +1,12 @@
+namespace StellaOps.Auth.Abstractions;
+
+/// <summary>
+/// Shared tenancy default values used across StellaOps services.
+/// </summary>
+public static class StellaOpsTenancyDefaults
+{
+    /// <summary>
+    /// Sentinel value indicating the token is not scoped to a specific project.
+    /// </summary>
+    public const string AnyProject = "*";
+}