feat(lua,UI): display power gen/usage in voltmeter, add more bindings

[scarf005]

Purpose of change (The Why)

resolves #7723 (#7707)

Describe the solution (The How)

• make bn (data/json) work as a lua mod
• add VOLTMETER lua-based item action
• lua-ify voltmeter, directly show grid status
• add more bindings (inventory distribution_grid, overmapbuffer, requirement_data)

Testing

2025-12-29_03-37-05.mp4

• fix bug where connection is only displaced as center

Additional context

Note

needs to be rebase merged

global warming from token usage letsgoooooo

Checklist

Mandatory

• I wrote the PR title in conventional commit format.
• I ran the code formatter.
• I linked any relevant issues using github keyword syntax like closes #1234 in Summary of the PR so it can be closed automatically.
• I've committed my changes to new branch that isn't main so it won't cause conflict when updating main branch later.

Optional

• This PR adds/removes a mod.
  • I have added mods scope to the PR title.
  • The mod_name in data/mods/<mod_name> matches id in modinfo.json.
  • I have committed the output of deno task semantic.
• This PR modifies lua scripts or the lua API.
  • I have added lua scope to the PR title.
  • I have added type annotations to functions so that it's safe and easy to maintain.
  • I have committed the output of deno task docs:gen so the Lua API documentation is updated.