Add pristine dotnet new webapi scaffold

Baseline commit of the untouched template so the M0 restructure lands as a
reviewable diff rather than appearing as the initial state.

Includes .gitignore and .gitattributes only; no source changes.

.gitattributes

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+# Normalise line endings: LF in the repo, native on checkout.
+* text=auto
+
+# Source
+*.cs        text diff=csharp
+*.csproj    text
+*.slnx      text
+*.props     text
+*.targets   text
+*.json      text
+*.axaml     text
+*.xaml      text
+*.ts        text
+*.js        text
+*.css       text
+*.html      text
+*.md        text
+*.yml       text
+*.yaml      text
+*.sql       text
+
+# Files that must keep LF regardless of platform — shell scripts run in Linux
+# containers, and Dockerfiles are read by a Linux daemon.
+*.sh          text eol=lf
+Dockerfile    text eol=lf
+*.Dockerfile  text eol=lf
+Caddyfile     text eol=lf
+
+# Windows-only scripts keep CRLF
+*.cmd text eol=crlf
+*.bat text eol=crlf
+*.ps1 text eol=crlf
+
+# Binary — never diff or convert
+*.png  binary
+*.jpg  binary
+*.ico  binary
+*.icns binary
+*.gif  binary
+*.pdf  binary
+*.zip  binary
+*.gz   binary
+*.dll  binary
+*.so   binary
+*.dylib binary
+*.pfx  binary
+*.snk  binary
+
+# Test fixtures are byte-exact contracts — never touch their line endings.
+tests/fixtures/**  -text

.gitignore

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+## Build results
+[Bb]in/
+[Oo]bj/
+[Oo]ut/
+[Ll]og/
+[Ll]ogs/
+artifacts/
+!artifacts/openapi/
+!artifacts/schema/
+
+## .NET / MSBuild
+*.user
+*.suo
+*.userosscache
+*.sln.docstates
+project.lock.json
+project.fragment.lock.json
+*.binlog
+*.nuget.props
+*.nuget.targets
+msbuild.log
+msbuild.err
+msbuild.wrn
+
+## NuGet
+*.nupkg
+*.snupkg
+.nuget/
+**/packages/*
+!**/packages/build/
+# packages.lock.json IS committed — restore --locked-mode depends on it
+
+## Test / coverage
+[Tt]est[Rr]esult*/
+coverage*.json
+coverage*.xml
+coverage*.info
+*.coverage
+*.coveragexml
+TestResults/
+BenchmarkDotNet.Artifacts/
+
+## IDEs
+.vs/
+.vscode/*
+!.vscode/extensions.json
+!.vscode/launch.json
+!.vscode/tasks.json
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries/
+.idea/**/shelf/
+.idea/**/contentModel.xml
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/httpRequests/
+*.DotSettings.user
+
+## OS
+.DS_Store
+Thumbs.db
+desktop.ini
+
+## Node (xterm.js bundle in DodoSSH.Client.WebAssets)
+node_modules/
+npm-debug.log*
+yarn-error.log*
+.pnpm-store/
+
+## Client build / packaging output
+publish/
+Releases/
+*.AppImage
+*.dmg
+*.deb
+*.rpm
+*.msix
+*.appinstaller
+
+## Secrets and local config — never commit these
+*.pfx
+*.p12
+*.snk
+appsettings.Local.json
+appsettings.*.Local.json
+.env
+.env.*
+!deploy/.env.example
+secrets/

.idea/.idea.DodoSSH/.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Rider ignored files
+/projectSettingsUpdater.xml
+/modules.xml
+/.idea.DodoSSH.iml
+/contentModel.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Ignored default folder with query files
+/queries/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/.idea.DodoSSH/.idea/encodings.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with BOM under Windows, with no BOM otherwise" />
+</project>

.idea/.idea.DodoSSH/.idea/indexLayout.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="UserContentModel">
+    <attachedFolders />
+    <explicitIncludes />
+    <explicitExcludes />
+  </component>
+</project>

DodoSSH.slnx

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+<Solution>
+  <Project Path="DodoSSH/DodoSSH.csproj" />
+</Solution>

DodoSSH/DodoSSH.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+    <PropertyGroup>
+        <TargetFramework>net10.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <ImplicitUsings>enable</ImplicitUsings>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.10"/>
+    </ItemGroup>
+
+</Project>

DodoSSH/DodoSSH.http

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+@DodoSSH_HostAddress = http://localhost:5233
+
+GET {{DodoSSH_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###

DodoSSH/Program.cs

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+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
+builder.Services.AddOpenApi();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.MapOpenApi();
+}
+
+app.UseHttpsRedirection();
+
+var summaries = new[]
+{
+    "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
+};
+
+app.MapGet("/weatherforecast", () =>
+    {
+        var forecast = Enumerable.Range(1, 5).Select(index =>
+                new WeatherForecast
+                (
+                    DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
+                    Random.Shared.Next(-20, 55),
+                    summaries[Random.Shared.Next(summaries.Length)]
+                ))
+            .ToArray();
+        return forecast;
+    })
+    .WithName("GetWeatherForecast");
+
+app.Run();
+
+record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
+{
+    public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
+}

DodoSSH/Properties/launchSettings.json

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+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "applicationUrl": "http://localhost:5233",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "applicationUrl": "https://localhost:7217;http://localhost:5233",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

DodoSSH/appsettings.Development.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

DodoSSH/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

global.json

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+{
+  "sdk": {
+    "version": "10.0.0",
+    "rollForward": "latestMinor",
+    "allowPrerelease": false
+  }
+}