Unify DesignSurface and TestConsole into DemoConsole

[ricardobossan]

Fixes #13388

Proposed changes

• Renamed files in DesignSurfaceExt to match the updated class names from PR #13433
• Moved all code files from DesignSurfaceExt into the DemoConsole project directory
• Integrated all relevant configuration from DesignSurfaceExt.csproj into DemoConsole.csproj
• Deleted DesignSurfaceExt.csproj
• Merged the contents of Directory.Build.props into DemoConsole.csproj to consolidate all settings in one place
• Removed the now redundant Directory.Build.props file
• Relocated the DemoConsole folder up one level to align with other integration test projects
• Deleted the now empty DesignSurfaceExt folder

Customer Impact

• None

Risk

• Minimal

Test methodology

• Manual

Test environment(s)

• 10.0.100-preview.3.25201.16

Microsoft Reviewers: Open in CodeFlow

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 51.20921%. Comparing base (16058a3) to head (5dc54c8). Report is 2 commits behind head on main.

:exclamation: There is a different number of reports uploaded between BASE (16058a3) and HEAD (5dc54c8). Click for more details.

HEAD has 2 uploads less than BASE

Flag	BASE (16058a3)	HEAD (5dc54c8)
Debug	3	2
test	1	0

Additional details and impacted files

@@                 Coverage Diff                  @@
##                main      #13437          +/-   ##
====================================================
- Coverage   76.69388%   51.20921%   -25.48467%     
====================================================
  Files           3255        2063        -1192     
  Lines         641604      287751      -353853     
  Branches       47491       42056        -5435     
====================================================
- Hits          492071      147355      -344716     
+ Misses        145877      137510        -8367     
+ Partials        3656        2886         -770     

Flag	Coverage Δ
Debug	51.20921% <ø> (-25.48467%)	:arrow_down:
integration	18.99141% <ø> (-0.00350%)	:arrow_down:
production	51.20921% <ø> (-0.00348%)	:arrow_down:
test	?
unit	48.58854% <ø> (+0.00035%)	:arrow_up:

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[KlausLoeffelmann]

Hey @LeafShi1, @ricardobossan

what are we doing with this one?

It probably would need to be rebased and the requested has not been applied yet (but I only looked so briefly).

Do y'all want to keep this?

[ricardobossan]

Hi @KlausLoeffelmann,

Tanya's goal was to unify the DemoConsole and DesignSurface projects. This was structured as a two-step process across two PRs:

1. Unify namespace and class names across all files (PR #13433, already merged)
2. Rename files and folders (this PR)

Since the first step is already complete, renaming the files and folders is the natural continuation.

I've rebased the branch and resolved the merge conflicts. They were straightforward.

After the rebase, I tested the DemoConsole (now fully unified with DesignSurfaceExt) on both target frameworks (.NET 10 and net481). Everything appears to be working as expected.

I’d recommend moving forward with this PR.

@LeafShi1, what do you think?

[LeafShi1]

@LeafShi1, what do you think?

It will be fine to keep this. Please resolve the conflict.