Add delete-run and delete-cache commands

- delete-run: Delete a run by ID (with confirmation unless -f)
- delete-cache: Delete a cached item by hash (with confirmation unless -f)
- Both require login

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

artdag.py

@@ -293,6 +293,95 @@ def status(run_id):
         click.echo(f"Error: {run['error']}")
 
 
+@cli.command("delete-run")
+@click.argument("run_id")
+@click.option("--force", "-f", is_flag=True, help="Skip confirmation")
+def delete_run(run_id, force):
+    """Delete a run. Requires login.
+
+    RUN_ID: The run ID to delete
+    """
+    token_data = load_token()
+    if not token_data.get("access_token"):
+        click.echo("Not logged in. Please run: artdag login <username>", err=True)
+        sys.exit(1)
+
+    # Get run info first
+    try:
+        run = api_get(f"/runs/{run_id}")
+    except requests.HTTPError as e:
+        if e.response.status_code == 404:
+            click.echo(f"Run not found: {run_id}", err=True)
+            sys.exit(1)
+        raise
+
+    if not force:
+        click.echo(f"Run: {run_id}")
+        click.echo(f"Status: {run['status']}")
+        click.echo(f"Recipe: {run['recipe']}")
+        if not click.confirm("Delete this run?"):
+            click.echo("Cancelled.")
+            return
+
+    try:
+        headers = {"Authorization": f"Bearer {token_data['access_token']}"}
+        resp = requests.delete(f"{get_server()}/runs/{run_id}", headers=headers)
+        if resp.status_code == 400:
+            click.echo(f"Cannot delete: {resp.json().get('detail', 'Unknown error')}", err=True)
+            sys.exit(1)
+        if resp.status_code == 403:
+            click.echo("Access denied", err=True)
+            sys.exit(1)
+        if resp.status_code == 404:
+            click.echo(f"Run not found: {run_id}", err=True)
+            sys.exit(1)
+        resp.raise_for_status()
+    except requests.RequestException as e:
+        click.echo(f"Failed to delete run: {e}", err=True)
+        sys.exit(1)
+
+    click.echo(f"Deleted run: {run_id}")
+
+
+@cli.command("delete-cache")
+@click.argument("content_hash")
+@click.option("--force", "-f", is_flag=True, help="Skip confirmation")
+def delete_cache(content_hash, force):
+    """Delete a cached item. Requires login.
+
+    CONTENT_HASH: The content hash to delete
+    """
+    token_data = load_token()
+    if not token_data.get("access_token"):
+        click.echo("Not logged in. Please run: artdag login <username>", err=True)
+        sys.exit(1)
+
+    if not force:
+        click.echo(f"Content hash: {content_hash}")
+        if not click.confirm("Delete this cached item?"):
+            click.echo("Cancelled.")
+            return
+
+    try:
+        headers = {"Authorization": f"Bearer {token_data['access_token']}"}
+        resp = requests.delete(f"{get_server()}/cache/{content_hash}", headers=headers)
+        if resp.status_code == 400:
+            click.echo(f"Cannot delete: {resp.json().get('detail', 'Unknown error')}", err=True)
+            sys.exit(1)
+        if resp.status_code == 403:
+            click.echo("Access denied", err=True)
+            sys.exit(1)
+        if resp.status_code == 404:
+            click.echo(f"Content not found: {content_hash}", err=True)
+            sys.exit(1)
+        resp.raise_for_status()
+    except requests.RequestException as e:
+        click.echo(f"Failed to delete cache item: {e}", err=True)
+        sys.exit(1)
+
+    click.echo(f"Deleted: {content_hash}")
+
+
 @cli.command()
 @click.option("--limit", "-l", default=20, help="Max items to show")
 def cache(limit):