[idea] show_pane_id_on_pane_borders

[mgreshis]

idea / problem

One of the most powerful workflows herdr unlocks is easy prompting for agents to talk to panes with other agents.

However, its hard to remember all the pane ids in the current workspace. Currently user has to run herdr pane list in the current pane to get its ID, then prompt their agent to start interacting with that ID. That gets annoying fast.

requested change

Similar to the ui.show_agent_labels_on_pane_borders feature, this feature request is to show the pane id on the pane border (e.g. w1:p2)

why you want this

Usability

[nailk]

also would be useful: right click -> "copy pane id" to be able to copy-paste it quickly

[honbolau]

Just linking a related thread opened later with a more detailed proposal: #2204 "Feature request: show pane IDs in the UI (sidebar / pane borders)" — it lists three implementation options (sidebar token, pane border, context-menu copy action) and the same Copy pane ID idea from the comment above. #1880 also asks for a quick way to get/copy the current pane ID. Seems like a widely-requested feature — consolidating the threads here.