"Run C/C++ File" fails in PowerShell if path has spaces (missing & call operator)

Type: Bug

### Environment
- **OS**: Windows 10
- **VS Code Version**: 1.128.0 / 1.129.0
- **C/C++ Extension Version**: v1.32.2
- **Integrated Terminal Shell**: PowerShell

### Bug Description
A recent VS Code update introduced a regression in how paths containing spaces are sent to the integrated PowerShell terminal when using the "Run C/C++ File" button.

Instead of prepending the PowerShell call operator (`&`), the command is sent as a raw quoted string literal. As a result, PowerShell just echoes back the path as a string instead of executing the compiled binary.

### Steps to Reproduce
1. Create a workspace folder with spaces in its name (e.g., `00 - Test`).
2. Open the folder in VS Code and create a basic C file (`main.c`).
3. Set **PowerShell** as the default integrated terminal profile.
4. Click the "Run C/C++ File" play button in the top right corner.

### Actual Behavior (Terminal Output)
PowerShell receives the quoted path without the `&` operator and evaluates it as a string literal:
```powershell
PS C:\Users\Username\Documents\Development\Workspaces\C\00 - Test> "C:\Users\Username\Documents\Development\Workspaces\C\00 - Test\main.exe"
C:\Users\Username\Documents\Development\Workspaces\C\00 - Test\main.exe
PS C:\Users\Username\Documents\Development\Workspaces\C\00 - Test>
```
The program is never executed.

### Expected Behavior
The command sent to PowerShell should include the call operator (`&`) to evaluate the path as an executable command:
```powershell
& "C:\Users\Username\Documents\Development\Workspaces\C\00 - Test\main.exe"
```

### Additional Context
- Workspaces **without spaces** in their path work perfectly.
- **Debug mode works perfectly** because the extension correctly structures the arguments using the `&` operator to launch `WindowsDebugLauncher.exe`.

VS Code version: Code 1.129.0 (125df4672b8a6a34975303c6b0baa124e560a4f7, 2026-07-15T00:08:44Z)
OS version: Windows_NT x64 10.0.19045
Modes:

System Info

|Item|Value|
|---|---|
|CPUs|Intel(R) Core(TM) i5-6600 CPU @ 3.30GHz (4 x 3312)|
|GPU Status|2d_canvas: enabled
GPU0: VENDOR= 0x10de, DEVICE=0x1401 [NVIDIA GeForce GTX 960], DRIVER_VENDOR=NVIDIA, DRIVER_VERSION=32.0.15.8228 *ACTIVE*
GPU1: VENDOR= 0x8086, DEVICE=0x1912 [Intel(R) HD Graphics 530], DRIVER_VERSION=31.0.101.2111
GPU2: VENDOR= 0x10de, DEVICE=0x1401 [NVIDIA GeForce GTX 960], DRIVER_VERSION=32.0.15.8228
GPU3: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.19041.5794
Machine model name:
Machine model version:
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
skia_graphite: disabled_off
trees_in_viz: disabled_off
video_decode: enabled
video_encode: enabled
webgl: enabled
webgpu: enabled
webnn: disabled_off|
|Load (avg)|undefined|
|Memory (System)|23.89GB (19.37GB free)|
|Process Argv|--crash-reporter-id b87b55e4-8836-49c4-baf6-faa406b533ce|
|Screen Reader|no|
|VM|0%|
Extensions (4)

Name|Identifier|Author|Version
---|---|---|---
CMake Tools|ms-vscode.cmake-tools|ms-vscode|1.23.52
C/C++ DevTools|ms-vscode.cpp-devtools|ms-vscode|0.5.13
C/C++|ms-vscode.cpptools|ms-vscode|1.32.2
C/C++ Extension Pack|ms-vscode.cpptools-extension-pack|ms-vscode|1.5.1

A/B Experiments

```
vsliv368cf:30146710
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
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pythonrdcb7:31342333
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cp_cls_t_966_ss:31526232
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c3h7c220:31478652
cp_cls_c_1081:31454833
conptydll_true:31498968
e9c30283:31461165
test_treatment2:31471001
46204921:31447328
idci7584:31464702
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chat:31457767
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ddid_c:31478207
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cp_cls_t_1082:31535311
logging_enabled_new:31498466
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ha629193:31508444
cdk-lw-on:31524445
f9bf7985:31543584
a1ije391_t:31540920
hgf2d445:31529595
8hfba999:31537718
prpt_srch:31518468
jbcp_cls_pctr_t:31531130
61138546:31518536
cp_intellij_t_nes:31548657
jf4hg949:31526829
h561g132:31533256
sessions_5:31532894
ihg5j128:31534457
f412h606:31551416
7g2b5551:31542111
7642ad28:31551796
fd5dc207:31551400

```