refactor: simplify system initialization by removing function wrapper

Remove the `initialize_system()` function and `@GPU` decorator, moving initialization steps directly into the script body with added progress prints for better readability and streamlined execution.

app.py

@@ -25,34 +25,27 @@ from warbler_cda.pack_loader import PackLoader
 # Initialize the system
 print("🚀 Initializing Warbler CDA...")
 
-@GPU
-def initialize_system():
-    """Initialize the Warbler CDA system with GPU support."""
-    # Create embedding provider (will use sentence-transformers with GPU if available)
-    embedding_provider = EmbeddingProviderFactory.get_default_provider()
-    print(f"✅ Embedding provider: {embedding_provider.get_provider_info()['provider_id']}")
-
-    # Create semantic anchors (required by RetrievalAPI)
-    semantic_anchors = SemanticAnchorGraph(embedding_provider=embedding_provider)
-    print("✅ Semantic anchors initialized")
+# Initialize the system components
+print("⚙️ Creating embedding provider...")
+embedding_provider = EmbeddingProviderFactory.get_default_provider()
+print(f"✅ Embedding provider: {embedding_provider.get_provider_info()['provider_id']}")
 
-    # Create FractalStat bridge
-    fractalstat_bridge = FractalStatRAGBridge()
-    print("✅ FractalStat bridge initialized")
-
-    # Create RetrievalAPI with proper components
-    api = RetrievalAPI(
-        semantic_anchors=semantic_anchors,
-        embedding_provider=embedding_provider,
-        fractalstat_bridge=fractalstat_bridge,
-        config={"enable_fractalstat_hybrid": True}
-    )
-    print("✅ RetrievalAPI initialized")
+print("⚙️ Initializing semantic anchors...")
+semantic_anchors = SemanticAnchorGraph(embedding_provider=embedding_provider)
+print("✅ Semantic anchors initialized")
 
-    return api
+print("⚙️ Initializing FractalStat bridge...")
+fractalstat_bridge = FractalStatRAGBridge()
+print("✅ FractalStat bridge initialized")
 
-# Initialize with GPU support
-api = initialize_system()
+print("⚙️ Creating RetrievalAPI...")
+api = RetrievalAPI(
+    semantic_anchors=semantic_anchors,
+    embedding_provider=embedding_provider,
+    fractalstat_bridge=fractalstat_bridge,
+    config={"enable_fractalstat_hybrid": True}
+)
+print("✅ RetrievalAPI initialized")
 
 # Load packs
 print("📚 Loading Warbler packs...")