fix(scripts): Layer 2 array wrapping for edmxFiles

- Wrap Get-ChildItem with @() to ensure array even with single result
- Prevents '.Count property not found' error

docs: Add Run 10 report documenting ContosoUniversity migration gaps

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: csharpfritz

dev-docs/migration-tests/contosouniversity-run10-2026-03-09/REPORT.md

@@ -0,0 +1,144 @@
+# ContosoUniversity Migration — Run 10 Report
+
+## Executive Summary
+
+**Run 10 revealed significant script gaps** when migrating ContosoUniversity — a Web Forms app with different patterns than WingtipToys. The migration scripts work well for WingtipToys-style apps but need enhancements for ContosoUniversity's inline styles and EF6 patterns.
+
+| Metric | Value |
+|--------|-------|
+| **Build Status** | ❌ FAILED (68 errors) |
+| **Layer 1 Time** | 1.17 seconds |
+| **Layer 2 Time** | 0.68 seconds |
+| **Date** | 2026-03-09 |
+| **Branch** | `squad/audit-docs-perf` |
+
+## Timing Details
+
+| Phase | Duration |
+|-------|----------|
+| Layer 1 (bwfc-migrate.ps1) | 1.17s |
+| Layer 2 (bwfc-migrate-layer2.ps1) | 0.68s |
+| **Total Script Time** | **1.85s** |
+| Build (failed) | 8.0s |
+
+## Script Bug Fixed During Run
+
+**Layer 2 line 1323:** `Get-ChildItem` returned a single object instead of array, causing `.Count` property error. Fixed by wrapping with `@()`:
+```powershell
+# Before (bug)
+$edmxFiles = Get-ChildItem -Path $SourcePath -Filter '*.edmx' ...
+# After (fix)
+$edmxFiles = @(Get-ChildItem -Path $SourcePath -Filter '*.edmx' ...)
+```
+
+## Build Errors Discovered
+
+### Category 1: Style Attribute Quoting (42 errors)
+The source app uses inline BWFC style attributes like:
+```xml
+BackColor="White" ForeColor="#333333" BorderStyle="Solid"
+```
+
+In Razor, these parse as C# identifiers (`White`, `Solid`, `Center`) instead of string literals. The script needs to quote these properly:
+```razor
+BackColor="White"  ❌ Parses White as C# variable
+BackColor=@("White")  ✅ Explicit string
+```
+
+**Affected attributes:** BackColor, ForeColor, BorderColor, BorderStyle, HorizontalAlign, Font-Bold, etc.
+
+### Category 2: Hex Color Values (15 errors)
+Hex colors like `ForeColor="#333333"` cause preprocessor directive errors because `#` starts a C# preprocessor directive in certain contexts.
+
+### Category 3: Code-Behind Entity References (9 errors)
+Layer 2's Pattern A generated incorrect entity references:
+- `db.Items` — DbContext doesn't have an `Items` property
+- `db.Enrollmet_Logics` — Non-existent DbSet name
+- `db.strings` — Incorrectly detected entity type
+
+### Category 4: Event Handler Binding (2 errors)
+Methods referenced in `OnClick` attributes don't exist in the generated code-behind:
+- `btnSearchCourse_Click` 
+- `search_Click`
+
+### Category 5: DbContext Constructor (1 error)
+The `Enrollmet_Logic.cs` model tries to instantiate `ContosoUniversityEntities()` without the required `DbContextOptions` parameter (EF Core requires DI).
+
+## Root Cause Analysis
+
+### ContosoUniversity vs WingtipToys
+
+| Aspect | WingtipToys | ContosoUniversity |
+|--------|-------------|-------------------|
+| **Inline Styles** | None (CSS classes) | Heavy use (40+ attributes) |
+| **Color Values** | None | Hex colors everywhere |
+| **EF Pattern** | Code-First | DB-First (.edmx) |
+| **GridView Usage** | Simple | Complex with nested styles |
+| **Table Controls** | Minimal | Heavy use of `<Table>` |
+| **SelectMethod** | Standard pattern | Non-standard patterns |
+
+The migration scripts were optimized for WingtipToys' patterns. ContosoUniversity uses significantly different patterns that require script enhancements.
+
+## Required Script Enhancements
+
+### Layer 1 Fixes Needed
+
+1. **Quote all BWFC style attribute values**
+   - Detect known style attribute names (BackColor, ForeColor, etc.)
+   - Ensure values are quoted as strings: `BackColor="White"` → `BackColor=@("White")`
+   
+2. **Handle hex color values**
+   - Convert `ForeColor="#333333"` to `ForeColor=@("#333333")` 
+   - Or: Remove inline colors, add TODO to move to CSS
+
+3. **Validate SelectMethod references**
+   - Ensure methods exist in code-behind
+   - Generate stubs if missing
+
+### Layer 2 Fixes Needed
+
+1. **Improve entity type detection**
+   - Don't generate `db.Items` as a fallback
+   - Parse actual DbSet properties from DbContext
+   
+2. **Handle EF6 → EF Core DbContext properly**
+   - Remove `DbModelBuilder` references
+   - Add parameterless constructor option for legacy patterns
+   - Or: Generate proper DI-based instantiation
+
+## Recommendations
+
+1. **ContosoUniversity is not a good BWFC migration candidate** — it uses patterns that don't map cleanly to BWFC (heavy inline styles, DB-first EF, non-standard code-behind).
+
+2. **Enhance scripts for broader compatibility** — but prioritize WingtipToys-style apps since those are the common migration path.
+
+3. **Add script validation** — detect problematic patterns early and warn users before migration starts.
+
+## Files Produced
+
+```
+samples/AfterContosoUniversity/
+├── About.razor                     # 68 build errors
+├── About.razor.cs
+├── Courses.razor
+├── Courses.razor.cs
+├── Home.razor
+├── Home.razor.cs
+├── Instructors.razor
+├── Instructors.razor.cs
+├── Students.razor
+├── Students.razor.cs
+├── Components/
+│   ├── Layout/
+│   │   ├── MainLayout.razor
+│   │   └── MainLayout.razor.cs
+│   └── App.razor
+├── Models/
+│   ├── Model1.Context.cs           # EF Core DbContext (fixed)
+│   ├── *.cs                        # Entity models
+├── Program.cs                      # Generated by Layer 2
+├── ContosoUniversity.csproj        # With project reference to BWFC
+├── layer2-manual-items.md
+├── layer2-transforms.log
+└── scaffold-command.txt
+```

migration-toolkit/scripts/bwfc-migrate-layer2.ps1

@@ -1320,7 +1320,7 @@ if (-not $DbProvider) {
             }
         }
         # Check for .edmx files (implies SQL Server in most cases)
-        $edmxFiles = Get-ChildItem -Path $SourcePath -Filter '*.edmx' -Recurse -ErrorAction SilentlyContinue
+        $edmxFiles = @(Get-ChildItem -Path $SourcePath -Filter '*.edmx' -Recurse -ErrorAction SilentlyContinue)
         if ($edmxFiles.Count -gt 0) {
             $detectedProvider = 'SqlServer'
         }