Refactor Kubernetes Client Factory and Introduce Red Hat Extensions

- Added a new function `NewKubernetesClientFactory` to handle client creation based on authentication method.
- Introduced a new markdown file for documenting BFF handler extensions for downstream builds.
- Implemented handler overrides for Model Registry Settings to support Red Hat-specific behavior.
- Created a new repository for Model Registry Settings with Kubernetes integration.
- Added methods for CRUD operations on Model Registry settings, including handling database secrets.
- Implemented conversion functions for unstructured Kubernetes objects to strongly typed models.
- Ensured that all new functionality adheres to existing interfaces and maintains backward compatibility.

feat: adapt the code to upstream

Signed-off-by: lucferbux <[email protected]>

Author: ederign

clients/ui/bff/.vscode/launch.json

@@ -9,7 +9,7 @@
       "program": "${workspaceFolder}/bin/bff",
       "args": [
         "--port=4000",
-        "--auth-method=internal",
+        "--auth-method=user_token",
         "--auth-token-header=Authorization",
         "--auth-token-prefix=Bearer",
         "--static-assets-dir=./static",
@@ -30,7 +30,7 @@
       "program": "${workspaceFolder}/bin/bff",
       "args": [
         "--port=4000",
-        "--auth-method=internal",
+        "--auth-method=user_token",
         "--auth-token-header=Authorization",
         "--auth-token-prefix=Bearer",
         "--static-assets-dir=./static",
@@ -51,13 +51,34 @@
       "program": "${workspaceFolder}/bin/bff",
       "args": [
         "--port=4000",
-        "--auth-method=internal",
+        "--auth-method=user_token",
         "--auth-token-header=Authorization",
         "--auth-token-prefix=Bearer",
         "--static-assets-dir=./static",
         "--mock-k8s-client=false",
         "--mock-mr-client=false",
-        "--dev-mode=false",
+        "--dev-mode=true",
+        "--dev-mode-port=8080",
+        "--standalone-mode=true",
+        "--log-level=info" 
+      ],
+      "preLaunchTask": "make build debug"
+    },
+    {
+      "name": "XFW Debug BFF (MOCK_K8S_CLIENT=false, MOCK_MR_CLIENT=false)",
+      "type": "go",
+      "request": "launch",
+      "mode": "exec",
+      "program": "${workspaceFolder}/bin/bff",
+      "args": [
+        "--port=4000",
+        "--auth-method=user_token_red_hat",
+        "--auth-token-header=X-Forwarded-Access-Token",
+        "--auth-token-prefix=",
+        "--static-assets-dir=./static",
+        "--mock-k8s-client=false",
+        "--mock-mr-client=false",
+        "--dev-mode=true",
         "--dev-mode-port=8080",
         "--standalone-mode=true",
         "--log-level=info"