docs: document ThatAllSetupsAreUsed

[vbreuss]

This PR adds documentation for the ThatAllSetupsAreUsed verification method, which allows users to check if all configured mock setups have been invoked during test execution.

Key changes:

• Documents the new ThatAllSetupsAreUsed method alongside the existing ThatAllInteractionsAreVerified method
• Includes code examples and explanations for both the main README and documentation pages

[Copilot]

Pull request overview

This PR adds documentation for the ThatAllSetupsAreUsed verification method, which allows users to check if all configured mock setups have been invoked during test execution.

Key changes:

• Documents the new ThatAllSetupsAreUsed method alongside the existing ThatAllInteractionsAreVerified method
• Includes code examples and explanations for both the main README and documentation pages

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
README.md	Added documentation for ThatAllSetupsAreUsed method and restructured the unexpected interactions section with numbered items
Docs/pages/04-verify-interactions.md	Added identical documentation for ThatAllSetupsAreUsed method in the verification interactions page

[github-actions]

Test Results

   14 files  ±0     14 suites  ±0   4m 42s ⏱️ +19s
1 385 tests ±0  1 384 ✅ ±0  1 💤 ±0  0 ❌ ±0 
9 184 runs  ±0  9 183 ✅ ±0  1 💤 ±0  0 ❌ ±0 

Results for commit 12139f5. ± Comparison against base commit ea304cb.

[github-actions]

🚀 Benchmark Results

Details

BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.3 LTS (Noble Numbat)

AMD EPYC 7763 2.72GHz, 1 CPU, 4 logical and 2 physical cores

.NET SDK 10.0.100

[Host] : .NET 10.0.0 (10.0.0, 10.0.25.52411), X64 RyuJIT x86-64-v3
Job=InProcess  Toolchain=InProcessEmitToolchain  IterationCount=15

LaunchCount=1  WarmupCount=10

Method	Mean	Error	StdDev	Gen0	Gen1	Allocated
Simple_Mockolate	1.569 μs	0.0226 μs	0.0211 μs	0.2193	-	3.6 KB
Simple_Moq	180.300 μs	1.4983 μs	1.4015 μs	0.4883	-	14.55 KB
Simple_NSubstitute	5.986 μs	0.0499 μs	0.0442 μs	0.5569	0.0076	9.14 KB
Simple_FakeItEasy	6.519 μs	0.0394 μs	0.0349 μs	0.4959	-	8.11 KB

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

This is addressed in release v0.42.0.