Router Registry Cleanup: Archive unreferenced legacy routes

- Moved 29 unreferenced legacy router files to app/routers/archive/
- Restored and registered 'websockets' router in registry.py (exempted from deprecation)
- Cleaned up registry imports and verified application compilation.

app/routers/archive/membership_cfg.py

@@ -0,0 +1,46 @@
+import datetime
+from fastapi import APIRouter, Body, Depends, Header, HTTPException, Path, Query, Response, status
+from pydantic import BaseModel, EmailStr, Field
+from typing import Dict, List, Optional, Set, Union
+
+from app.lib_general import log, logging
+from app.config import settings
+from app.db_sql import redis_lookup_id_random
+
+from app.routers.api_crud import delete_obj_template, get_obj_template, get_obj_li_template, patch_obj_template, post_obj_template
+
+from app.methods.membership_cfg_methods import load_membership_cfg_obj
+
+from app.models.response_models import Resp_Body_Base, mk_resp
+
+
+router = APIRouter()
+
+
+# ### BEGIN ### API Membership Cfg ### get_account_obj_membership_cfg() ###
+# Updated 2021-07-13
+@router.get('/account/{account_id}/membership/cfg', response_model=Resp_Body_Base)
+async def get_account_obj_membership_cfg(
+        account_id: str = Path(min_length=11, max_length=22),
+        x_account_id: str = Header(...),
+        by_alias: Optional[bool] = True,
+        exclude_unset: Optional[bool] = True,
+        response: Response = Response,
+        ):
+    log.setLevel(logging.WARNING) # DEBUG, INFO, WARNING, ERROR, EXCEPTION, CRITICAL
+    log.debug(locals())
+
+    if account_id := redis_lookup_id_random(record_id_random=account_id, table_name='account'): pass
+    else: return mk_resp(data=None, status_code=404)
+
+    if membership_cfg_result := load_membership_cfg_obj(
+            account_id = account_id,
+            by_alias = by_alias,
+            exclude_unset = exclude_unset,
+            model_as_dict = True,
+            ):
+        response_data = membership_cfg_result
+    else: return mk_resp(data=False, status_code=400, response=response) # Bad Request
+
+    return mk_resp(data=response_data)
+# ### END ### API Membership Cfg ### get_account_obj_membership_cfg() ###