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

bot/data/flows/admin_print_file.json

@@ -0,0 +1,14 @@
+{
+  "id": "admin_print_file",
+  "role": "admin",
+  "name": "🖨️ Imprimir Archivo",
+  "trigger_button": "print_file",
+  "steps": [
+    {
+      "step_id": 0,
+      "variable": "UPLOAD_FILE",
+      "question": "Por favor, envíame el archivo que quieres imprimir.",
+      "input_type": "document"
+    }
+  ]
+}