feat(deploy): add minimal ASGI app and Dockerfile for simple deploys

Mirrors the mevzuat-mcp pattern: a thin app.py exposing
mcp.http_app() with a /health route, no FastAPI/CORS/OAuth wrapper.
Dockerfile builds on python:3.12-slim and runs uvicorn directly.
Removes Dockerfile/fly.toml entries from .dockerignore so the new
Dockerfile is included in the build context.

Existing asgi_app.py (api.yargimcp.com production) is untouched.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app.py

@@ -0,0 +1,35 @@
+"""
+ASGI application for Yargı MCP Server (simple deployment variant).
+
+This is a minimal ASGI application that can be run with:
+    uvicorn app:app --host 0.0.0.0 --port 8000
+
+The MCP server will be available at:
+    http://localhost:8000/mcp/
+
+For the FastAPI-wrapped variant with CORS and extra metadata routes,
+see asgi_app.py instead.
+"""
+
+from starlette.responses import JSONResponse
+from mcp_server_main import create_app
+
+mcp = create_app()
+
+
+@mcp.custom_route("/health", methods=["GET"])
+async def health_check(request):
+    """Health check endpoint for monitoring services (Fly.io, Render, etc.)."""
+    return JSONResponse({
+        "status": "healthy",
+        "service": "Yargı MCP Server",
+        "version": "0.2.0",
+    })
+
+
+# Create ASGI app directly from FastMCP server
+app = mcp.http_app()
+
+# Endpoints:
+# - /mcp/   - MCP server (Streamable HTTP transport, default FastMCP path)
+# - /health - Health check for monitoring