fix(ci): fix black/ruff failures, add CoC and PR template

- Fix Python formatting (sync no longer strips blank lines from .py files)
- Remove test_community_build.py (tests private sync module)
- Fix ruff warnings in test files
- Add CODE_OF_CONDUCT.md
- Add .github/PULL_REQUEST_TEMPLATE.md

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/openpanel/handlers/system.py

@@ -5,6 +5,7 @@ from typing import Any
 
 from plugins.openpanel.client import OpenPanelClient
 
+
 def get_tool_specifications() -> list[dict[str, Any]]:
     """Return tool specifications for ToolGenerator (6 tools)"""
     return [
@@ -72,10 +73,12 @@ def get_tool_specifications() -> list[dict[str, Any]]:
         },
     ]
 
+
 # =====================
 # System Functions (6)
 # =====================
 
+
 async def health_check(client: OpenPanelClient) -> str:
     """Check OpenPanel instance health"""
     try:
@@ -109,6 +112,7 @@ async def health_check(client: OpenPanelClient) -> str:
             ensure_ascii=False,
         )
 
+
 async def get_instance_info(client: OpenPanelClient) -> str:
     """Get OpenPanel instance information"""
     try:
@@ -126,6 +130,7 @@ async def get_instance_info(client: OpenPanelClient) -> str:
     except Exception as e:
         return json.dumps({"success": False, "error": str(e)}, indent=2, ensure_ascii=False)
 
+
 async def get_usage_stats(client: OpenPanelClient, project_id: str, date_range: str = "30d") -> str:
     """Get usage statistics for a project"""
     try:
@@ -173,6 +178,7 @@ async def get_usage_stats(client: OpenPanelClient, project_id: str, date_range:
     except Exception as e:
         return json.dumps({"success": False, "error": str(e)}, indent=2, ensure_ascii=False)
 
+
 async def get_storage_stats(client: OpenPanelClient, project_id: str) -> str:
     """Get storage usage statistics"""
     try:
@@ -199,6 +205,7 @@ async def get_storage_stats(client: OpenPanelClient, project_id: str) -> str:
     except Exception as e:
         return json.dumps({"success": False, "error": str(e)}, indent=2, ensure_ascii=False)
 
+
 async def test_connection(client: OpenPanelClient) -> str:
     """Test connection to OpenPanel API"""
     try:
@@ -232,6 +239,7 @@ async def test_connection(client: OpenPanelClient) -> str:
             ensure_ascii=False,
         )
 
+
 async def get_rate_limit_status(client: OpenPanelClient) -> str:
     """Check current rate limit status"""
     try: