Some quick documentation for old legacy routes.

documentation/legacy_router_logs/dependencies_v3.md

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+# Router: dependencies_v3
+
+**File:** app/routers/dependencies_v3.py
+
+**Routes found:** 0
+
+**Functions:** 2 — get_account_context_optional, get_account_context
+
+**Classes:** 4 — PaginationParams, StatusFilterParams, SerializationParams, DelayParams
+
+
+
+## Routes
+- (no @router.<method> decorators found)
+
+
+
+## From-imports
+
+- app.models.auth_models
+
+- fastapi
+
+- typing
+
+
+
+## File preview (first 20 lines)
+
+```python
+
+from fastapi import Depends, Header, HTTPException, Query, Response, status
+from typing import Optional, Union
+import logging
+import asyncio
+
+from app.models.auth_models import AccountContext
+
+log = logging.getLogger(__name__)
+
+# --- Account Context Dependencies ---
+
+def get_account_context_optional(
+    x_account_id: Optional[str] = Header(None, min_length=11, max_length=22),
+    x_no_account_id: Optional[str] = Header(None, min_length=3, max_length=100),
+    x_no_account_id_token: Optional[str] = Query(None, alias='jwt', min_length=11),
+    x_aether_api_key: Optional[str] = Header(None, min_length=11, max_length=22),
+) -> AccountContext:
+    """
+    Resolves the account context and enforces API Key validation.
+    Uses DEFERRED imports to prevent circular dependency at startup.
+
+```