Rename Invoke button to Run Heartbeat for UX consistency

[richardanaya]

Existing UX evidence this is what we should be calling it

New name

Still looks okay with mobile

[greptile-apps]

Greptile Summary

This PR renames the "Invoke" button label to "Run Heartbeat" in AgentDetail.tsx for UX consistency, aligning the button text with the existing "Run Heartbeat" terminology used elsewhere in the product (as shown in the PR screenshots).

• Single-character label change in one file (ui/src/pages/AgentDetail.tsx, line 471)
• The underlying mutation action string ("invoke") and API call (/heartbeat/invoke) are correctly left unchanged — only the visible label is updated
• A related user-facing warning message at line 564 still uses the old verb "invoked" ("...cannot be invoked yet.") and should be updated to match the new terminology

Confidence Score: 5/5

• This PR is safe to merge — it is a one-line UI label change with no functional impact.
• The change is purely cosmetic (a button label rename), touches a single line, and does not affect any logic, API calls, or state management. The only minor issue is a now-inconsistent user-facing string in the same component, which is non-blocking.
• No files require special attention.

Important Files Changed

Filename	Overview
ui/src/pages/AgentDetail.tsx	Renames the "Invoke" button label to "Run Heartbeat" for UX consistency; a related user-facing message at line 564 still uses the old "invoked" terminology and was not updated.

Sequence Diagram

sequenceDiagram
    participant User
    participant AgentDetail UI
    participant agentsApi
    participant Server

    User->>AgentDetail UI: Click "Run Heartbeat"
    AgentDetail UI->>AgentDetail UI: agentAction.mutate("invoke")
    AgentDetail UI->>agentsApi: invoke(agentLookupRef, companyId)
    agentsApi->>Server: POST /heartbeat/invoke
    Server-->>agentsApi: HeartbeatRun { id, ... }
    agentsApi-->>AgentDetail UI: data
    AgentDetail UI->>AgentDetail UI: Navigate to run detail page

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Comments Outside Diff (1)

1. ui/src/pages/AgentDetail.tsx, line 564 (link)

   Stale "invoked" terminology in user-facing message

   The button has been renamed to "Run Heartbeat", but this approval-pending warning message still uses the old verb "invoked". Users who just clicked "Run Heartbeat" and see this message will encounter inconsistent language.

_{Last reviewed commit: 638f230}