remove nginx, serve ui from api itself

app/main.py

@@ -1,5 +1,7 @@
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
+from fastapi.staticfiles import StaticFiles
+from fastapi.responses import FileResponse
 from app.api.artifacts import router as artifacts_router
 from app.api.seed import router as seed_router
 from app.api.tags import router as tags_router
@@ -7,6 +9,7 @@ from app.database import init_db
 from app.config import settings
 import logging
 import os
+from pathlib import Path
 
 # Configure logging
 logging.basicConfig(
@@ -39,7 +42,8 @@ app.include_router(artifacts_router)
 app.include_router(seed_router)
 app.include_router(tags_router)
 
-# Note: Frontend is now served separately as an Angular application
+# Static files configuration - will be set up after routes
+static_dir = Path("/app/static")
 
 
 @app.on_event("startup")
@@ -65,16 +69,20 @@ async def api_root():
 
 
 @app.get("/")
-async def ui_root():
-    """API root - Frontend is served separately"""
-    return {
-        "message": "Test Artifact Data Lake API",
-        "version": "1.0.0",
-        "docs": "/docs",
-        "frontend": "Frontend is served separately on port 4200 (development) or via reverse proxy (production)",
-        "deployment_mode": settings.deployment_mode,
-        "storage_backend": settings.storage_backend
-    }
+async def serve_angular_app():
+    """Serve Angular app index.html"""
+    static_dir = Path("/app/static")
+    if static_dir.exists():
+        return FileResponse(static_dir / "index.html")
+    else:
+        # Fallback if static files not found
+        return {
+            "message": "Test Artifact Data Lake API",
+            "version": "1.0.0",
+            "docs": "/docs",
+            "deployment_mode": settings.deployment_mode,
+            "storage_backend": settings.storage_backend
+        }
 
 
 @app.get("/health")
@@ -83,6 +91,31 @@ async def health_check():
     return {"status": "healthy"}
 
 
+# Catch-all route for Angular client-side routing
+# This must be last to not interfere with API routes
+@app.get("/{full_path:path}")
+async def catch_all(full_path: str):
+    """Serve Angular app for all non-API routes (SPA routing)"""
+    if static_dir.exists():
+        # Check if the requested path is a file in the static directory
+        file_path = static_dir / full_path
+        if file_path.is_file() and file_path.exists():
+            # Determine media type based on file extension
+            media_type = None
+            if file_path.suffix == ".js":
+                media_type = "application/javascript"
+            elif file_path.suffix == ".css":
+                media_type = "text/css"
+            elif file_path.suffix in [".png", ".jpg", ".jpeg", ".gif", ".svg", ".ico"]:
+                media_type = f"image/{file_path.suffix[1:]}"
+            return FileResponse(file_path, media_type=media_type)
+        # Otherwise, serve index.html for client-side routing
+        index_path = static_dir / "index.html"
+        if index_path.exists():
+            return FileResponse(index_path, media_type="text/html")
+    return {"error": "Static files not found"}
+
+
 if __name__ == "__main__":
     import uvicorn
     uvicorn.run(