Codex App automations should collapse duplicate scheduled tasks with identical prompts

Feature request

In the Codex App automations view, repeated or identical scheduled tasks currently appear as separate full entries, and each one shows the full prompt even when the prompt content is exactly the same.

This makes the automation list unnecessarily noisy. When many automations share the same prompt, the prompt text does not add any new information per row, but it still consumes a large amount of vertical space and makes the list harder to scan.

Problem

For identical or near-identical scheduled tasks:

• every automation entry still expands enough to show the full prompt;
• repeated prompt bodies dominate the list visually;
• the useful differences, such as schedule, target thread/project, status, last run, next run, or destination, become harder to compare;
• the UI gives the feeling that the user must inspect every prompt even when there is no meaningful prompt difference.

This is especially awkward when a user creates several recurring tasks based on the same instruction pattern. The repeated prompt is technically correct, but it is not useful as the primary always-visible content.

Expected behavior

The automations view should support collapsing or grouping duplicate scheduled tasks.

Possible approaches:

• Group automations with identical prompt text under a shared collapsible prompt group.
• Show the prompt once as a group header, then list individual schedules/targets underneath.
• Default repeated prompt bodies to collapsed when several entries have the same prompt.
• Emphasize the fields that differ between entries: schedule, status, target, next run, last run, workspace/thread, model, etc.
• Provide an explicit expand affordance for users who want to inspect the full prompt.
• Optionally show a compact duplicate count such as 5 automations use this prompt.

Why this matters

The current behavior makes a high-volume automation list feel heavier than it needs to be. In automation management, repeated prompt text is often less important than the operational metadata around each task.

A collapsible/grouped design would make the view easier to scan, reduce visual repetition, and make recurring automation management feel more polished.