chore: add CLAUDE.md and .claude config

.claude/settings.local.json

@@ -0,0 +1,14 @@
+{
+  "permissions": {
+    "allow": [
+      "Skill(update-config)",
+      "Bash(echo '{\"tool_name\":\"Edit\",\"tool_input\":{\"file_path\":\"D:\\\\\\\\python\\\\\\\\xmtdx\\\\\\\\src\\\\\\\\xmtdx\\\\\\\\__init__.py\"}}')",
+      "Bash(python -c \"import sys,json,subprocess;d=json.load\\(sys.stdin\\);f=d.get\\('tool_input',{}\\).get\\('file_path',''\\);exec\\('' if not f.endswith\\(\\\\\\\\'.py\\\\\\\\'\\) else 'subprocess.run\\([\\\\\\\\'ruff\\\\\\\\',\\\\\\\\'check\\\\\\\\',\\\\\\\\'--fix\\\\\\\\',f],capture_output=True\\);subprocess.run\\([\\\\\\\\'ruff\\\\\\\\',\\\\\\\\'format\\\\\\\\',f],capture_output=True\\)'\\);print\\(f'done: {f}'\\)\")",
+      "Bash(python *)",
+      "Bash(ruff check *)",
+      "Bash(git add *)",
+      "Bash(git commit *)",
+      "Bash(git push *)"
+    ]
+  }
+}