Restructure as Codex plugin

tests/test_cli_v3.py

@@ -12,7 +12,7 @@ from unittest import mock
 
 
 REPO_ROOT = Path(__file__).resolve().parents[1]
-sys.path.insert(0, str(REPO_ROOT / "scripts"))
+sys.path.insert(0, str(REPO_ROOT / "skills" / "last30days" / "scripts"))
 
 import last30days as cli
 from lib import schema
@@ -53,7 +53,7 @@ class CliV3Tests(unittest.TestCase):
 
     def test_mock_json_cli(self):
         result = subprocess.run(
-            [sys.executable, "scripts/last30days.py", "test topic", "--mock", "--emit=json"],
+            [sys.executable, "skills/last30days/scripts/last30days.py", "test topic", "--mock", "--emit=json"],
             cwd=REPO_ROOT,
             capture_output=True,
             text=True,