refactor: Migrate bot core and modules from talia_bot to bot directory, update start_bot.sh and Dockerfile, and modify README.md.

bot/db.py

@@ -0,0 +1,60 @@
+# bot/db.py
+# This module will handle the database connection and operations.
+
+import sqlite3
+import logging
+import os
+
+DATABASE_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), "data", "users.db")
+
+logger = logging.getLogger(__name__)
+
+def get_db_connection():
+    """Creates a connection to the SQLite database."""
+    conn = sqlite3.connect(DATABASE_FILE)
+    conn.row_factory = sqlite3.Row
+    return conn
+
+def setup_database():
+    """Sets up the database tables if they don't exist."""
+    conn = None
+    try:
+        conn = get_db_connection()
+        cursor = conn.cursor()
+
+        # Create the users table
+        cursor.execute("""
+            CREATE TABLE IF NOT EXISTS users (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                telegram_id INTEGER UNIQUE NOT NULL,
+                role TEXT NOT NULL CHECK(role IN ('admin', 'crew', 'client')),
+                name TEXT,
+                employee_id TEXT,
+                branch TEXT
+            )
+        """)
+
+        # Create the conversations table
+        cursor.execute("""
+            CREATE TABLE IF NOT EXISTS conversations (
+                user_id INTEGER PRIMARY KEY,
+                flow_id TEXT NOT NULL,
+                current_step_id INTEGER NOT NULL,
+                collected_data TEXT
+            )
+        """)
+
+        conn.commit()
+        logger.info("Database setup complete. 'users' table is ready.")
+    except sqlite3.Error as e:
+        logger.error(f"Database error during setup: {e}")
+    finally:
+        if conn:
+            conn.close()
+
+if __name__ == '__main__':
+    # This allows us to run the script directly to initialize the database
+    logging.basicConfig(level=logging.INFO)
+    logger.info("Running database setup manually...")
+    setup_database()
+    logger.info("Manual setup finished.")