chore: remove outdated documentation and reference files

- Remove debugging service documentation (DEBUgging_SERVICES.md)
- Remove development logs policy and quick reference guides
- Remove E2E test creation summary
- Remove gift certificate example file
- Remove GitHub pull summary documentation

scripts/testing/test_broadcaster.py

@@ -0,0 +1,16 @@
+import asyncio
+from broadcaster import Broadcast
+
+async def main():
+    broadcast = Broadcast("redis://localhost:6379")
+    await broadcast.connect()
+    print("connected")
+    async with broadcast.subscribe("test") as sub:
+        print("subscribed")
+        await broadcast.publish("test", "hello")
+        async for msg in sub:
+            print("msg:", msg.message)
+            break
+    await broadcast.disconnect()
+
+asyncio.run(main())