Improve models, shields list tables (#105)

Better rendering to avoid truncating most important pieces of
information

## Test Plan

Small width
<img width="821" alt="image"
src="https://github.com/user-attachments/assets/055bd4c4-76b1-4718-8894-4841cd0b2323"
/>

Large width
<img width="1684" alt="image"
src="https://github.com/user-attachments/assets/84b770d6-ad59-4809-84d4-b62152f8f57b"
/>

Author: ashwinb

.gitignore

@@ -14,3 +14,4 @@ dist
 .envrc
 codegen.log
 Brewfile.lock.json
+.DS_Store

src/llama_stack_client/lib/cli/models/models.py

@@ -27,22 +27,42 @@ def list_models(ctx):
     console = Console()
 
     headers = [
+        "model_type",
         "identifier",
-        "provider_id",
-        "provider_resource_id",
+        "provider_alias",
         "metadata",
-        "model_type",
+        "provider_id",
     ]
     response = client.models.list()
     if response:
-        table = Table()
-        for header in headers:
-            table.add_column(header)
+        table = Table(
+            show_lines=True,  # Add lines between rows for better readability
+            padding=(0, 1),  # Add horizontal padding
+            expand=True,  # Allow table to use full width
+        )
+
+        # Configure columns with specific styling
+        table.add_column("model_type", style="blue")
+        table.add_column("identifier", style="bold cyan", no_wrap=True, overflow="fold")
+        table.add_column(
+            "provider_resource_id", style="yellow", no_wrap=True, overflow="fold"
+        )
+        table.add_column("metadata", style="magenta", max_width=30, overflow="fold")
+        table.add_column("provider_id", style="green", max_width=20)
 
         for item in response:
-            row = [str(getattr(item, header)) for header in headers]
-            table.add_row(*row)
+            table.add_row(
+                item.model_type,
+                item.identifier,
+                item.provider_resource_id,
+                str(item.metadata or ""),
+                item.provider_id,
+            )
+
+        # Create a title for the table
+        console.print("\n[bold]Available Models[/bold]\n")
         console.print(table)
+        console.print(f"\nTotal models: {len(response)}\n")
 
 
 @click.command(name="get")

src/llama_stack_client/lib/cli/shields/shields.py

@@ -29,25 +29,48 @@ def list(ctx):
     console = Console()
 
     shields_list_response = client.shields.list()
-    headers = []
-    if shields_list_response and len(shields_list_response) > 0:
-        headers = sorted(shields_list_response[0].__dict__.keys())
+    headers = [
+        "identifier",
+        "provider_alias",
+        "params",
+        "provider_id",
+    ]
 
     if shields_list_response:
-        table = Table()
-        for header in headers:
-            table.add_column(header)
+        table = Table(
+            show_lines=True,  # Add lines between rows for better readability
+            padding=(0, 1),  # Add horizontal padding
+            expand=True,  # Allow table to use full width
+        )
+
+        table.add_column("identifier", style="bold cyan", no_wrap=True, overflow="fold")
+        table.add_column(
+            "provider_alias", style="yellow", no_wrap=True, overflow="fold"
+        )
+        table.add_column("params", style="magenta", max_width=30, overflow="fold")
+        table.add_column("provider_id", style="green", max_width=20)
 
         for item in shields_list_response:
-            table.add_row(*[str(getattr(item, header)) for header in headers])
+            table.add_row(
+                item.identifier,
+                item.provider_resource_id,
+                str(item.params or ""),
+                item.provider_id,
+            )
+
         console.print(table)
 
 
 @shields.command()
 @click.option("--shield-id", required=True, help="Id of the shield")
 @click.option("--provider-id", help="Provider ID for the shield", default=None)
 @click.option("--provider-shield-id", help="Provider's shield ID", default=None)
-@click.option("--params", type=str, help="JSON configuration parameters for the shield", default=None)
+@click.option(
+    "--params",
+    type=str,
+    help="JSON configuration parameters for the shield",
+    default=None,
+)
 @click.pass_context
 @handle_client_errors("register shield")
 def register(