feat: add editable AI prompts to system tasks UI

[chubes4]

Summary

• Expose system task AI prompts in the admin UI — the backend was fully built (prompt definitions, REST API, CLI, wp_options storage) but never surfaced. Tasks with AI prompts now have an "Edit Prompts" button in the System Tasks tab.
• Move PromptField to @shared/components/ — was siloed in the pipelines webpack bundle. Now reusable across all admin bundles (agent, pipelines, settings, etc.)

How it works

┌─────────────────────────────────────────┐
│  Task Card                              │
│  ┌───────────────────────────────────┐  │
│  │ Alt Text Generation          [✓]  │  │
│  │ Generate alt text for images...   │  │
│  │                                   │  │
│  │ Trigger: ⚡ add_attachment hook   │  │
│  │ Last run: Mar 15, 2:30 PM        │  │
│  │ Total runs: 42                    │  │
│  │                                   │  │
│  │ [Run Now]  [Edit Prompts]         │  │
│  │                                   │  │
│  │ ┌─────────────────────────────┐   │  │
│  │ │ Alt Text Prompt             │   │  │
│  │ │ ┌───────────────────────┐   │   │  │
│  │ │ │ Write alt text for... │   │   │  │
│  │ │ │ {{context}}           │   │   │  │
│  │ │ └───────────────────────┘   │   │  │
│  │ │ Variables: {{context}}      │   │  │
│  │ │ [Reset to default]         │   │  │
│  │ └─────────────────────────────┘   │  │
│  └───────────────────────────────────┘  │
└─────────────────────────────────────────┘

Tasks with editable prompts (5 total)

Task	Prompt Keys
Alt Text	generate
Meta Description	generate
Internal Linking	insert_link
Daily Memory	daily_summary, memory_cleanup

Files changed (4)

File	Change
@shared/components/PromptField.jsx	New — moved from pipelines shared, AUTO_SAVE_DELAY defined locally
PipelineStepCard.jsx	Import updated to @shared path
systemTaskPrompts.js	New — TanStack Query hooks for GET/PUT/DELETE prompts API
SystemTasksTab.jsx	Added PromptEditor, prompt fetching, save/reset wiring, "Edit Prompts" button per task card

[github-actions]

Homeboy Results — data-machine

Lint

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✅ lint (changed files only)

Test

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✅ test (changed files only)

Audit

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✅ audit (changed files only)

Tooling versions

• Homeboy CLI: homeboy 0.78.0+01729422
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: unknown
• Action: Extra-Chill/homeboy-action@v1

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Homeboy Action v1