feat(frontend): offer Agent type in the Prompts page create menu

[ardaerzin]

Stacked on #4850 (agent config panel); it needs the agent create drawer from that PR. Base is fe-feat/agent-config-panel-onbig so the diff is just this feature, and it retargets/rebases onto big-agents once #4850 merges.

Context

Agents can be created from the Home page (the create modal offers Chat / Completion / Agent), but the Prompts page "Create new" menu (and the breadcrumb create menu) only listed Chat and Completion, so agent workflows couldn't be created there.

Changes

Added an Agent item to both create menus, wired exactly like Chat/Completion:

• PromptsTableSection ("Create new" → New prompt submenu)
• PromptsBreadcrumb (breadcrumb create menu)

No new logic was needed. The create handler was already type-agnostic: onOpenNewPrompt: (type: AppType) → handleOpenNewPromptModal → createEphemeralAppFromTemplate({type}) → open the agent create drawer. getAppTypeIcon already had the agent (robot) icon. Only the two menu entries were missing.

For the agent service (Mahmoud / agents)

Pure FE menu wiring. No new backend or create-flow code. It reuses the exact createEphemeralAppFromTemplate({type: "agent"}) path the Home modal already uses.

Tests / notes

• tsc + eslint clean on both files.
• The create path is identical to the Home "Agent" option, which is confirmed working (Home → Agent → the agent create drawer opens with the config panel + chat).
• The live submenu render was not screenshotted: the "Create new" menu opens, but antd's nested "New prompt" submenu does not expand under browser automation.

What to QA

• Prompts page → Create new → New prompt → Agent. The agent create drawer opens with the agent config panel + chat (same as creating an agent from Home).
• Regression: Chat and Completion still create their respective apps.

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Project	Deployment	Actions	Updated (UTC)
agenta-documentation	Ready	Preview, Comment	Jun 25, 2026 10:35pm

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[github-actions]

Railway Preview Environment

Status	Destroyed (PR closed)

Updated at 2026-06-25T23:20:16.401Z