Add ability to view which automations call a specific script

[GrimSQL]

Problem Description

In larger Home Assistant setups, it's common to reuse scripts across multiple automations. However, there's currently no built-in way to trace which automations are calling a given script. This makes it difficult to:

• Understand where and why a script is triggered.
• Refactor or remove scripts safely.
• Debug unexpected behavior caused by scripts being invoked indirectly.

This results in lots of manual YAML searching, which is inefficient and error-prone.

Proposed Solution

Add a feature in the UI (or as part of Developer Tools) that allows users to:

• View a list of automation(s) that reference a specific script.
• Optionally: show this on the script’s info panel or in the automation trace/debug view.

Additional Suggestions

• Even a simple reverse lookup tool in Developer Tools would help.
• Advanced: show script → automation → trigger chains in the trace UI.
• Optional CLI command or service like: script.usage(script_id).

Motivation

As a user who heavily relies on scripts to avoid redundancy, I often create multiple automations that call the same script — for example:

• A script that always lowers the blinds to a certain percentage.
• A lighting script that always sets the same brightness and color temperature in specific rooms.

This modular approach keeps my automations clean and maintainable. But when something doesn’t behave as expected, it's frustrating not being able to trace what triggered a script without manually grepping through YAML.

Having this feature would:

• Improve transparency and debugging.
• Make modular scripting safer and more appealing.
• Encourage best practices through better traceability.

Thanks for considering this!