Add SQLite warehouse database and Snowflake integration

warehouse/__init__.py

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+"""
+Snowflake-Compatible Data Warehouse Package
+Provides ORM-based access to live Snowflake data for fast querying and LLM integration.
+"""
+
+from .db_setup import HybridDataWarehouse, YearlongDataWarehouse, create_session
+from .models import Base, Metric, Dimension, Fact, FactDimension
+# Import query functions for easy access
+from .query_wrapper import create_session as query_create_session, query_facts, convert_jargons
+
+__version__ = "2.1.0"  # Updated with proper star schema design
+__all__ = [
+    'HybridDataWarehouse',
+    'YearlongDataWarehouse',  # Backward compatibility alias
+    'create_session',
+    'query_create_session',
+    'query_facts',
+    'convert_jargons',
+    'Base',
+    'Metric',
+    'Dimension',
+    'Fact',
+    'FactDimension'
+]

warehouse/data_ingestion.py

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+"""
+Data Ingestion Module for Year-long Data Warehouse
+Processes and loads data from various sources into the SQLite warehouse.
+"""
+
+import pandas as pd
+import dask.dataframe as dd
+import os
+import json
+import sys
+from datetime import datetime, date
+from typing import List, Dict, Any, Optional
+from .db_setup import YearlongDataWarehouse
+import logging
+
+# Add parent directory to path for module imports
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+class DataIngestionManager: