fix(acp_zed): move examples into subdir to avoid acp.py import shadow

Running `python examples/serve/acp_zed_lite.py` puts `examples/serve/` on
`sys.path[0]`, where `from acp import ...` inside the adapter resolves to
the sibling `examples/serve/acp.py` (the IBM/BeeAI ACP example) instead of
the Zed SDK's `acp` package. The shadowed module then drags in `acp_sdk`,
which has a separate pre-existing uvicorn incompatibility, and the whole
import chain collapses with `AttributeError: module 'uvicorn.config' has
no attribute 'LoopSetupType'`.

Move the three Zed ACP entrypoints into `examples/serve/acp_zed/`:
- `examples/serve/acp_zed.py` → `examples/serve/acp_zed/simple.py`
- `examples/serve/acp_zed_kiwi.py` → `examples/serve/acp_zed/kiwi.py`
- `examples/serve/acp_zed_lite.py` → `examples/serve/acp_zed/lite.py`

With this layout, running the script places `examples/serve/acp_zed/` on
`sys.path[0]` instead, so `acp` resolves to the installed SDK and no
shadow can occur. Docstring launch snippets and the `test_examples.py`
exclusion glob are updated to match.

Signed-off-by: Tomáš Dvořák <toomas2d@gmail.com>

Author: Tomas2D

python/examples/serve/acp_zed_kiwi.py python/examples/serve/acp_zed/kiwi.pypython/examples/serve/acp_zed_kiwi.py renamed to python/examples/serve/acp_zed/kiwi.py

@@ -10,7 +10,7 @@
       "agent_servers": {
         "beeai-kiwi": {
           "command": "python",
-          "args": ["/absolute/path/to/examples/serve/acp_zed_kiwi.py"]
+          "args": ["/absolute/path/to/examples/serve/acp_zed/kiwi.py"]
         }
       }
     }

python/examples/serve/acp_zed_lite.py python/examples/serve/acp_zed/lite.pypython/examples/serve/acp_zed_lite.py renamed to python/examples/serve/acp_zed/lite.py

@@ -9,7 +9,7 @@
       "agent_servers": {
         "beeai-lite": {
           "command": "python",
-          "args": ["/absolute/path/to/examples/serve/acp_zed_lite.py"]
+          "args": ["/absolute/path/to/examples/serve/acp_zed/lite.py"]
         }
       }
     }

python/examples/serve/acp_zed.py python/examples/serve/acp_zed/simple.pypython/examples/serve/acp_zed.py renamed to python/examples/serve/acp_zed/simple.py

@@ -6,7 +6,7 @@
       "agent_servers": {
         "beeai": {
           "command": "python",
-          "args": ["/absolute/path/to/examples/serve/acp_zed.py"]
+          "args": ["/absolute/path/to/examples/serve/acp_zed/simple.py"]
         }
       }
     }

python/tests/examples/test_examples.py

@@ -45,9 +45,7 @@
             "agents/providers/watsonx_orchestrate.py",
             "workflows/remote.py",
             "serve/acp.py",
-            "serve/acp_zed.py",
-            "serve/acp_zed_kiwi.py",
-            "serve/acp_zed_lite.py",
+            "serve/acp_zed/*.py",
             "serve/agent_stack.py",
             "serve/agent_stack_custom.py",
             "serve/agent_stack_await.py",