Add MAUI DevFlow session review skill

[Redth]

Summary

• Add maui-devflow-session-review, an opt-in skill for turning long or stuck MAUI DevFlow AI sessions into privacy-scrubbed product feedback.
• Bundle the new skill with maui devflow init / maui devflow skills update and update CLI output/tests.
• Add optional nudges from existing DevFlow skills plus eval coverage for retry loops, markdown reports, and scrubbed issue filing.

Validation

• git diff --check
• dotnet test src/Cli/Microsoft.Maui.Cli.UnitTests/Microsoft.Maui.Cli.UnitTests.csproj --filter "FullyQualifiedName~DevFlowSkill" --nologo --verbosity minimal
• dotnet test src/Cli/Microsoft.Maui.Cli.UnitTests/Microsoft.Maui.Cli.UnitTests.csproj --nologo --verbosity minimal

Note: local skill-validator was not installed; the repository skill-check workflow covers static skill validation.

[Copilot]

Pull request overview

Adds a new opt-in DevFlow skill, maui-devflow-session-review, that helps turn long or stuck MAUI DevFlow AI sessions into privacy-scrubbed product feedback (markdown reports or dotnet/maui-labs issues). The skill is bundled with the CLI and registered alongside existing recommended skills; existing DevFlow skills add an optional post-session nudge to invoke it.

Changes:

• New skill content under plugins/dotnet-maui/skills/maui-devflow-session-review/ (SKILL.md + 4 reference docs) and a matching eval suite in tests/dotnet-maui/maui-devflow-session-review/eval.yaml.
• CLI plumbing: register skill in DevFlowSkillManager, embed skill resources in Microsoft.Maui.Cli.csproj, and mention it in the init "next prompt" summary plus README/plugin metadata.
• Unit tests in DevFlowSkillManagerTests and DevFlowSkillOutputTests updated to verify the new skill is installed/updated across all target scopes; optional nudge sections added to onboard/debug/connect/automation/legacy skills.

Reviewed changes

Copilot reviewed 19 out of 19 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
plugins/dotnet-maui/skills/maui-devflow-session-review/SKILL.md	New skill front matter + workflow guidance
plugins/dotnet-maui/skills/maui-devflow-session-review/references/*.md	Supporting reference docs (sources, rubric, env fingerprint, reporting)
tests/dotnet-maui/maui-devflow-session-review/eval.yaml	Three scenario eval suite for the new skill
src/Cli/Microsoft.Maui.Cli/Microsoft.Maui.Cli.csproj	Embed new skill resources into the CLI
src/Cli/Microsoft.Maui.Cli/DevFlow/Skills/DevFlowSkillManager.cs	Register the new bundled skill as recommended
src/Cli/Microsoft.Maui.Cli/DevFlow/Skills/DevFlowSkillCommands.cs	Mention the new skill in init summary output
src/Cli/Microsoft.Maui.Cli.UnitTests/DevFlowSkillManagerTests.cs	Verify install/update/scope behavior for the new skill
src/Cli/Microsoft.Maui.Cli.UnitTests/DevFlowSkillOutputTests.cs	Assert new skill referenced in init summary text
plugins/dotnet-maui/skills/{maui-devflow-onboard,maui-devflow-debug,maui-ai-debugging,devflow-connect,devflow-automation}/SKILL.md	Add optional session-feedback nudge sections
plugins/dotnet-maui/plugin.json, plugins/README.md, README.md	Surface the new skill in plugin metadata/READMEs