[Bug] - nvim in terminal view doesn’t type SHIFT+<num> correctly.

### Short summary

Cannot access special symbols when using nvim in the integrated terminal.

### Affected version or release

v0.2.32

### Installation context

_No response_

### What happened?

I cannot type any of the special character associated with the number keys when I run nvim in the integrated terminal. All other shift modifiers seem to work. Affected symbols: `!@#%^&*()`. Could not reproduce in dedicated terminals or editors such as kitty and vscode.

### Steps to reproduce

1. Open a project
2. Open a terminal pane
3. Invoke nvim
4. Type SHIFT+<0-9>

### Expected behavior

Expect normal mapping of SHIFT+ keys.

### Additional context

- nvim v0.12.0
- MacOS Tahoe 26.5.1

Start by reproducing the SHIFT+0-9 input in the integrated terminal with nvim on macOS, following the listed steps and comparing it with a dedicated terminal. Trace how the terminal handles shifted number-key events; done means !@#%^&*() are entered correctly in nvim without breaking the other shift modifiers.

Written by the indexing model from the issue text.