fix(codex): align live-test AGENT_NAME with the manifest agent name

conftest set AGENT_NAME to "<name>-test" while the manifest registers "<name>",
so the live test queried a non-existent agent and got 404. Drop the override
for the sync and async-base tutorials (the test's own default already matches
the manifest). For the temporal tutorial set it to the manifest name instead
of removing it, since project/workflow.py reads AGENT_NAME at import time.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: declan-scale

examples/tutorials/00_sync/harness_codex/conftest.py

@@ -9,5 +9,4 @@
 
 sys.path.insert(0, os.path.dirname(__file__))
 
-os.environ.setdefault("AGENT_NAME", "s-harness-codex-test")
 os.environ.setdefault("ACP_URL", "http://localhost:8000")

examples/tutorials/10_async/00_base/harness_codex/conftest.py

@@ -9,5 +9,4 @@
 
 sys.path.insert(0, os.path.dirname(__file__))
 
-os.environ.setdefault("AGENT_NAME", "ab-harness-codex-test")
 os.environ.setdefault("ACP_URL", "http://localhost:8000")

examples/tutorials/10_async/10_temporal/harness_codex/conftest.py

@@ -9,7 +9,9 @@
 
 sys.path.insert(0, os.path.dirname(__file__))
 
-os.environ.setdefault("AGENT_NAME", "at-harness-codex-test")
+# AGENT_NAME must match the manifest's agent name: the live test queries the
+# server by this name, and project.workflow reads it at import time.
+os.environ.setdefault("AGENT_NAME", "at-harness-codex")
 os.environ.setdefault("ACP_URL", "http://localhost:8000")
 os.environ.setdefault("WORKFLOW_NAME", "at-harness-codex")
 os.environ.setdefault("WORKFLOW_TASK_QUEUE", "at_harness_codex_queue")