PowerToys Command Panel & Calculator: "e" is incorrectly cached as "e - 1" or "e - 2" or other value after certain operations

### Microsoft PowerToys version

0.97.0

### Installation method

Microsoft Store

### Area(s) with issue?

Command Palette

### Steps to reproduce

When using the PowerToys Run calculator (triggered by =), the constant e (Euler's number) sometimes gets stuck as e - 1 (≈0.71828) instead of the correct value ≈2.71828.
In some cases, after further misuse, it can even become a random negative number like -169.28.

This appears to be a caching bug: the internal variable e is mistakenly overwritten with e - 1( sometime is e - 2 , even other value)) and persists across calculations.

在 PowerToys Run 计算器（输入 = 触发）中，数学常数 e 有时会错误地变成 e - 1（约 0.71828）而不是正确的 2.71828。
某些错误操作后，甚至会变成负值（如 -169.28）。
这看起来是一个缓存 bug：内部变量 e 被错误覆盖为 e - 1(有时为e-2甚至其他更加错误的值)，并且会“粘住”(除非退出，否则e的值永久变更)。

Steps to Reproduce / 重现步骤
Open PowerToys Run (L Alt+Space)

Type = to enter calculator mode

Enter a complex expression with e and multiple unary minus signs, for example:
this: (-(--334e-12) / (900e---1))

Now type "e" and check the value of "e"

May it will actual output: 0.7182818285 (incorrect, should be 2.71828…)

打开 PowerToys Run（L Alt+space）

输入 = 进入计算器模式

输入一个包含 e 和多重负号的复杂表达式，例如：

输入
(-(--334e-12) / (900e---1))

此时单独输入 e 并回车

实际输出：0.7182818285（错误，e默认应为 2.71828…）

### ✔️ Expected Behavior

e should always evaluate to 2.718281828459045… (Euler's number), unaffected by previous calculations.
e 应始终计算为自然常数 2.718281828459045…，不受之前的计算影响。

### ❌ Actual Behavior

After the above expression, e returns e-2 (≈0.71828) or e-1 and even other value.
The wrong value persists even after closing and reopening PowerToys Run
my way to solve: Deleting cache files restores correct behavior temporarily

执行上述表达式后，e 返回 e-2（约 0.71828）或者 e-1 甚至其他乱七八杂的值
即使关闭并重新打开 PowerToys Run，错误值依然保持
删除缓存文件(可临时恢复正确行为)

### Upload Bug Report ZIP-file

_No response_

### Additional Information

Windows 11 25h2
CPU: Amd 7745hx GPU:4050laptop
mem: 16 + 512gb
.net version info:
C:\Users\Admin>dotnet --info
.NET SDK:
Version: 10.0.107
Commit: b16286c228
Workload version: 10.0.100-manifests.ef86bccd
MSBuild version: 18.0.11+b16286c22

运行时环境:
OS Name: Windows
OS Version: 10.0.26200
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\10.0.107\

已安装 .NET 工作负载:
没有要显示的已安装工作负载。
已配置为在安装新清单时使用 workload sets。
未安装任何 workload sets。运行 “dotnet workload restore” 以安装工作负载集。

Host:
Version: 10.0.7
Architecture: x64
Commit: b16286c228

.NET SDKs installed:
3.1.426 [C:\Program Files\dotnet\sdk]
6.0.428 [C:\Program Files\dotnet\sdk]
7.0.410 [C:\Program Files\dotnet\sdk]
10.0.107 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 3.1.32 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 10.0.7 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 3.1.32 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.26 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 10.0.7 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 3.1.32 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.26 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 10.0.7 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
None

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

### Other Software

none

Start in the PowerToys Run calculator reached with = after opening PowerToys Run with Alt+Space, and reproduce the supplied expression involving multiple unary minus signs. Trace how calculator results are cached and verify that the e constant remains 2.718281828459045 across subsequent calculations and after reopening the calculator.

Written by the indexing model from the issue text.