Add JavaScript templates support for perform-action > Action Data

[KroFR]

Not sure if this is a bug or a limitation. please advise.

Describe the bug

Display following error message: Failed to perform the action script/trouver_stations_proches. The entity specified was not found when I run HA script from bubble-card.

I can reproduce the issue only when the Action Data field contains Javascript

i.e.: bubble-card code that doesn't works

type: custom:bubble-card
card_type: button
button_type: name
sub_button:
  main: []
  bottom: []
name: Gas stations around me
icon: mdi:target
button_action:
  tap_action:
    action: perform-action
    perform_action: script.trouver_stations_proches
    target: {}
    data:
      tracker: |
        [[[
          const map = {
                "John": "person.john",
                "Helen": "person.helen",
                "Cathy": "person.cathy"
          };
          return map[hass.user.name];
        ]]]

i.e.: button-card with same code that works

type: custom:button-card
name: Gas stations around me
icon: mdi:gas-station
tap_action:
  action: perform-action
  perform_action: script.trouver_stations_proches
  data:
    tracker: |
      [[[
        const map = {
              "John": "person.john",
              "Helen": "person.helen",
              "Cathy": "person.cathy"
        };
        return map[hass.user.name];
      ]]]

i.e.: bubble-card work when Javascript is not used in Action Data

type: custom:bubble-card
card_type: button
button_type: name
sub_button:
  main: []
  bottom: []
name: Gas stations around me
icon: mdi:target
button_action:
  tap_action:
    action: perform-action
    perform_action: script.trouver_stations_proches
    target: {}
    data:
      tracker: person.john

Browser console logs

Information (please complete the following information):

• OS: Windows & iOS
• Browser/App: Edge & Mobile
• Bubble Card version: 3.2.5
• Home Assistant version: 2026.7.4

[Clooos]

Hi! This feature is a button-card specific feature, I'm moving this to the feature request section since this isn't a bug 🙂