CmdPal: GEH per partes; part 1: error report builder, sanitizer and internals tools setting page

[jiripolasek]

Summary of the Pull Request

This PR adds three parts of the original big bad global error handler (error report builder, sanitization and internal tools UI).

Error Report Generation

• ErrorReportBuilder: Produces a detailed, technical report with system context.
• Comprehensive data: OS version, architecture, culture, app version, elevation status, etc.
• Exception analysis: Coalesces nested exception messages and HRESULT details for clearer diagnostics.

Example

This is an error report generated by Windows Command Palette.

If you are seeing this, it means something went a little sideways in the app.

You can help us fix it by filing a report at https://aka.ms/powerToysReportBug.
(While you’re at it, give the details below a quick skim — just to make sure there’s nothing personal you’d prefer not to share. It’s rare, but sometimes little surprises sneak in.)
Summary:

Message:               Test exception; thrown from the UI thread

Type:                  System.NotImplementedException

Source:                Microsoft.CmdPal.UI

Time:                  2025-08-25 18:54:44.3854569

HRESULT:               0x80004001 (-2147467263)

Context:               MainThreadException
Application:

App version:           0.0.1.0

Is elevated:           no
Environment:

OS version:            Microsoft Windows 10.0.26120

OS architecture:       X64

Runtime identifier:    win-x64

Framework:             .NET 9.0.8

Process architecture:  X64

Culture:               cs-CZ

UI culture:            en-US
Stack Trace:

at Microsoft.CmdPal.UI.Settings.InternalPage.ThrowPlainMainThreadException_Click(Object sender, RoutedEventArgs e)

at WinRT._EventSource_global__Microsoft_UI_Xaml_RoutedEventHandler.EventState.b__1_0(Object sender, RoutedEventArgs e)

at ABI.Microsoft.UI.Xaml.RoutedEventHandler.Do_Abi_Invoke(IntPtr thisPtr, IntPtr sender, IntPtr e)
------------------ Full Exception Details ------------------

System.NotImplementedException: Test exception; thrown from the UI thread

at Microsoft.CmdPal.UI.Settings.InternalPage.ThrowPlainMainThreadException_Click(Object sender, RoutedEventArgs e)

at WinRT._EventSource_global__Microsoft_UI_Xaml_RoutedEventHandler.EventState.b__1_0(Object sender, RoutedEventArgs e)

at ABI.Microsoft.UI.Xaml.RoutedEventHandler.Do_Abi_Invoke(IntPtr thisPtr, IntPtr sender, IntPtr e)
============================================================

Real-world example: #41362

PII Sanitization Framework

• ErrorReportSanitizer: Multi-layer sanitization pipeline for sensitive data.
• Nine specialized rule providers:
  • PiiRuleProvider: Personally identifiable information (emails, phone numbers, SSNs).
  • ProfilePathAndUsernameRuleProvider: Windows user profiles and usernames.
  • NetworkRuleProvider: IP addresses, MAC addresses, network identifiers.
  • SecretKeyValueRulesProvider: API keys, tokens, passwords in key/value formats.
  • FilenameMaskRuleProvider: Sensitive file paths and extensions.
  • UrlRuleProvider: URLs and web addresses.
  • TokenRuleProvider: JWT and other auth tokens.
  • ConnectionStringRuleProvider: Database connection strings.
  • EnvironmentPropertiesRuleProvider: Environment variables and system properties.

Internals Tools Page

A page in settings available in non-CI-builds:

PR Checklist

• Closes: #xxx

• Communication: I've discussed this with core contributors already. If the work hasn't been agreed, this work might be rejected
• Tests: Added/updated and all pass
• Localization: All end-user-facing strings can be localized
• Dev docs: Added/updated
• New binaries: Added on the required places
  • JSON for signing for new binaries
  • WXS for installer for new binaries and localization folder
  • YML for CI pipeline for new test projects
  • YML for signed pipeline
• Documentation updated: If checked, please file a pull request on our docs repo and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

Validation Steps Performed

[github-advanced-security]

check-spelling found more than 20 potential problems in the proposed changes. Check the Files changed tab for more details.

[jiripolasek]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[michaeljolley]

Minor conflicts to resolve