refactor(integrations): run the Claude Code and Codex SessionStart flow from the lifecycle package

e2e/bub/tests/test_harbor_agent.py

@@ -142,8 +142,13 @@ def test_harbor_acp_runner_completes_a_prompt_with_the_pinned_client_sdk(tmp_pat
 
 def test_codex_plugin_accepts_the_server_url_the_harness_writes(monkeypatch, tmp_path: Path) -> None:
     # The plugin validates its .mcp.json strictly, so load the rewritten copy with the plugin's own settings.
-    for name in ("settings.py", "powercontext_client_config.py", ".mcp.json"):
+    for name in ("settings.py", ".mcp.json"):
         shutil.copy2(_CODEX_PLUGIN / name, tmp_path / name)
+    shutil.copytree(
+        _CODEX_PLUGIN / "powercontext_lifecycle",
+        tmp_path / "powercontext_lifecycle",
+        ignore=shutil.ignore_patterns("__pycache__"),
+    )
     server_url = "http://host-gateway:8000"
     subprocess.run(  # noqa: S603 - fixed interpreter and arguments
         [sys.executable, "-c", MCP_URL_REWRITE, str(tmp_path / ".mcp.json"), plugin_mcp_url(server_url)],
@@ -156,7 +161,7 @@ def test_codex_plugin_accepts_the_server_url_the_harness_writes(monkeypatch, tmp
     monkeypatch.setenv("POWERCONTEXT_CLIENT_CONFIG_FILE", str(tmp_path / "clients.json"))
     monkeypatch.setenv("POWERCONTEXT_CODEX_ALLOW_INSECURE_HTTP", "true")
     monkeypatch.syspath_prepend(str(tmp_path))
-    for module in ("settings", "powercontext_client_config"):
+    for module in ("settings", "powercontext_lifecycle", "powercontext_lifecycle.client_config"):
         monkeypatch.delitem(sys.modules, module, raising=False)
 
     plugin_settings = importlib.import_module("settings")

integrations/claude-code/plugins/powercontext/claude_code_host.py

@@ -0,0 +1,30 @@
+# Copyright (c) 2026 OceanBase.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""What the shared lifecycle modules need to know about Claude Code."""
+
+from powercontext_lifecycle.bootstrap_state import BootstrapState
+from powercontext_lifecycle.diagnostics import DiagnosticThrottle
+from powercontext_lifecycle.host_profile import HostProfile
+
+CLAUDE_CODE = HostProfile(
+    integration="claude-code",
+    user_agent="powercontext-claude-code-plugin/0.1.3",
+    component="powercontext.claude_code",
+    diagnostics=DiagnosticThrottle(state_file="claude-code-diagnostics.json"),
+    bootstrap_state=BootstrapState(
+        directory_variable="POWERCONTEXT_CLAUDE_BOOTSTRAP_STATE_DIR",
+        plugin_data_variable="CLAUDE_PLUGIN_DATA",
+    ),
+)

integrations/claude-code/plugins/powercontext/claude_code_settings.py

@@ -24,7 +24,7 @@
 from pathlib import Path
 from urllib.parse import urlsplit, urlunsplit
 
-from powercontext_client_config import load_client_settings, parse_boolean, resolve_allow_insecure_http
+from powercontext_lifecycle.client_config import load_client_settings, parse_boolean, resolve_allow_insecure_http
 
 # Kept in lockstep with powercontext.transport.LOOPBACK_HOSTS; the plugin ships
 # isolated and cannot import powercontext.