This update strengthens an internal accounting test so it will catch accidental changes to the signature field name. It helps protect the reliability of the signature-related accounting workflow without changing how users interact with the system.

The aim of this commit is to ensure the test fail in case the sign_signature field gets renammed.

Originally, it was made to avoid a query but it is insignificant.

task: none

The technical information for IoT devices has been reorganized into a dedicated "Technical Information" tab for better clarity and organization. This change improves the user interface by separating technical details from other device information, making it easier for users to find what they need.

Moved iot.box view technical information to "Technical Information" tab.

Task: 4033301

The system now stores all IoT device configurations (database URL, enterprise code, authentication tokens, etc.) in a single JSON file instead of multiple separate text files. This change makes configuration management simpler and more efficient for the IoT hardware driver system.

We currently save all configurations (db url, enterprise code, token, ...) in different text files. Now we store them all in a simple json file (config.json), easy to write and load from python.

Task: 2093535

Community PR: [https://github.com/odoo/odoo/pull/173866](https://github.com/odoo/odoo/pull/173866)