Cleanup and upgrade .net10.0

[adambarath]

No description provided.

[Copilot]

Pull request overview

This PR restructures the repository under src/, adds standard Visual Studio/.NET project artifacts (solution, designer/resources/settings), and attempts to upgrade the WinForms app to a newer .NET target while updating dependencies.

Changes:

• Introduces a solution file plus WinForms designer/resources/settings files under src/PDFDeSecure/.
• Updates the project target framework and bumps the PDFsharp package version.
• Adds repo-level .gitignore and a more complete .editorconfig, and updates README build instructions.

Reviewed changes

Copilot reviewed 18 out of 73 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/PDFDeSecure/PDFDeSecure.csproj	Updates target framework and package reference; adds build/code-style properties.
src/PDFDeSecure/Properties/PublishProfiles/FolderProfile.pubxml	Adds a filesystem publish profile (currently pins a TFM).
src/PDFDeSecure/Program.cs	Keeps existing batch “auto processing” entrypoint logic; formatting/ordering changes.
src/PDFDeSecure/PDFDeSecure.cs	WinForms UI logic retained; designer-backed form code added to repo.
src/PDFDeSecure/PDFDeSecure.Designer.cs	Adds WinForms designer-generated layout and control wiring.
src/PDFDeSecure/PDFDeSecure.resx	Adds form resource file (icon + designer metadata).
src/PDFDeSecure/Properties/Resources.resx	Adds project resources resx (currently only headers).
src/PDFDeSecure/Properties/Resources.Designer.cs	Adds strongly-typed resource accessor (auto-generated).
src/PDFDeSecure/Properties/Settings.settings	Adds application settings definition file.
src/PDFDeSecure/Properties/Settings.Designer.cs	Adds settings wrapper class (auto-generated).
src/PDFDeSecure/app.manifest	Adds application manifest (UAC + compatibility).
src/PDFDeSecure/App.config	Adds app config (currently contains .NET Framework startup settings).
src/PDFDeSecure.sln	Adds a solution file pointing at the PDFDeSecure project and solution items.
src/.editorconfig	Adds repo style/analyzer configuration for C# and XML artifacts.
README.md	Updates build instructions to use the src/ layout.
.gitignore	Adds a comprehensive ignore list for .NET/VS build + user artifacts.
.editorconfig	Removes the previous minimal root editorconfig in favor of src/.editorconfig.

Comments suppressed due to low confidence (4)

src/PDFDeSecure/Program.cs:56

• Building paths via Output + "\\" + fi.Name is error-prone (double slashes, missing slashes) and makes it harder to validate paths. Use Path.Combine(Output, fi.Name) (and similarly for the error log path).
  src/PDFDeSecure/PDFDeSecure.csproj:5
• TargetFramework is set to net10.0-windows, which is not a currently supported .NET target framework moniker on released SDKs and will fail restore/build in CI. Use a released TFM (e.g., net8.0-windows/net9.0-windows) and align publish profiles accordingly.
  src/PDFDeSecure/Program.cs:59
• When no PDFs are found (aryFi empty), counter + error is 0 and the percentage calculation divides by zero. Guard this case (e.g., show a separate message when total == 0) before computing the percentage.
  src/PDFDeSecure/Program.cs:51
• File streams and PdfDocument instances are manually closed/disposed inside the try block, but if an exception occurs after opening the stream, resources may leak (and output streams from OpenWrite() are never disposed). Prefer using statements (or try/finally) for fi.OpenRead(), new FileInfo(...).OpenWrite(), and the PdfDocument instances.

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