fix(presets): set pygame as default display in pipeline presets

engine/pipeline/presets.py

@@ -70,7 +70,7 @@ DEMO_PRESET = PipelinePreset(
     name="demo",
     description="Demo mode with effect cycling and camera modes",
     source="headlines",
-    display="terminal",
+    display="pygame",
     camera="vertical",
     effects=["noise", "fade", "glitch", "firehose", "hud"],
 )
@@ -79,7 +79,7 @@ POETRY_PRESET = PipelinePreset(
     name="poetry",
     description="Poetry feed with subtle effects",
     source="poetry",
-    display="terminal",
+    display="pygame",
     camera="vertical",
     effects=["fade", "hud"],
 )
@@ -115,7 +115,7 @@ FIREHOSE_PRESET = PipelinePreset(
     name="firehose",
     description="High-speed firehose mode",
     source="headlines",
-    display="terminal",
+    display="pygame",
     camera="vertical",
     effects=["noise", "fade", "glitch", "firehose", "hud"],
 )