feat: move daemon to docker with daily schedule and deduplication

src/database/questdb_client.py

@@ -4,10 +4,11 @@ from typing import List
 from ..exchanges.base import Trade
 
 class DatabaseClient:
-    def __init__(self, host: str = "localhost", port: int = 9000):
+    def __init__(self, host: str = "localhost", port: int = 9000, user: str = None, password: str = None):
         self.host = host
         self.port = port
         self.url = f"http://{host}:{port}/write"
+        self.auth = (user, password) if user and password else None
 
     def save_trades(self, trades: List[Trade]):
         if not trades:
@@ -15,10 +16,6 @@ class DatabaseClient:
 
         lines = []
         for trade in trades:
-            # QuestDB Influx Line Protocol format:
-            # table_name,tag1=val1,tag2=val2 field1=val1,field2=val2 timestamp
-            # We use microseconds for timestamp (nanoseconds is standard for ILP)
-            
             # Clean symbols for ILP
             symbol = trade.symbol.replace(" ", "\\ ").replace(",", "\\,")
             exchange = trade.exchange
@@ -31,8 +28,13 @@ class DatabaseClient:
         payload = "\n".join(lines) + "\n"
         
         try:
-            response = requests.post(self.url, data=payload, params={'precision': 'ns'})
-            if response.status_code != 204:
+            response = requests.post(
+                self.url, 
+                data=payload, 
+                params={'precision': 'ns'},
+                auth=self.auth
+            )
+            if response.status_code not in [204, 200]:
                 print(f"Error saving to QuestDB: {response.text}")
         except Exception as e:
             print(f"Could not connect to QuestDB at {self.url}: {e}")