## Summary
- Fixes#10345 — `copy_title_to_clipboard` now copies the user-set
custom title instead of the raw terminal title
- Adds a new `copy_title` apprt action as [suggested by
@mitchellh](https://github.com/ghostty-org/ghostty/issues/10345#issuecomment-2601002974)
- Each platform (GTK + macOS) resolves the effective title (user
override → terminal title fallback) before copying to clipboard
## Changes
- **`src/apprt/action.zig`** — New `copy_title` void action
- **`include/ghostty.h`** — C ABI enum entry
- **`src/Surface.zig`** — Binding handler now dispatches apprt action
instead of inline logic
- **`src/apprt/gtk/class/surface.zig`** — `getEffectiveTitle()` helper
(returns `title_override orelse title`)
- **`src/apprt/gtk/class/application.zig`** — GTK action handler
- **`macos/.../Ghostty.App.swift`** — macOS handler using
`surfaceView.title` + `NSPasteboard`
*Note*: This PR was *AI* assisted.
99e342717b