/api/clan_modules: init

- add GET /api/clan_modules entry point returning a list of modules available for import

pkgs/clan-cli/clan_cli/webui/routers/clan_modules.py

@@ -0,0 +1,21 @@
+# Logging setup
+import logging
+
+from fastapi import APIRouter, HTTPException
+
+from clan_cli.clan_modules import get_clan_module_names
+
+from ..schemas import (
+    ClanModulesResponse,
+)
+
+log = logging.getLogger(__name__)
+router = APIRouter()
+
+
+@router.get("/api/clan_modules")
+async def list_clan_modules() -> ClanModulesResponse:
+    module_names, error = get_clan_module_names()
+    if error is not None:
+        raise HTTPException(status_code=400, detail=error)
+    return ClanModulesResponse(clan_modules=module_names)