docs: document advanced callback features

[vbreuss]

This PR adds comprehensive documentation for advanced callback features in the Mockolate mocking library. The documentation covers conditional execution, frequency control, parallel execution, and invocation counter access for callbacks.

Key Changes:

• Added new "Advanced Features" section to README.md documenting callback capabilities
• Created dedicated documentation page for advanced callback features
• Updated category configurations to expand documentation sections by default

---

• Fixes Document advanced callback features #419

[Copilot]

Pull request overview

This PR adds comprehensive documentation for advanced callback features in the Mockolate mocking library. The documentation covers conditional execution, frequency control, parallel execution, and invocation counter access for callbacks.

Changes:

• Added new "Advanced Features" section to README.md documenting callback capabilities
• Created dedicated documentation page for advanced callback features
• Updated category configurations to expand documentation sections by default

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
README.md	Added comprehensive "Advanced callback features" section with examples of conditional callbacks, frequency control, parallel callbacks, and invocation counter usage
Docs/pages/advanced-features/category.json	Set category to expanded state by default
Docs/pages/special-types/category.json	Set category to expanded state by default
Docs/pages/advanced-features/01-advanced-callback-features.md	Created new documentation page with detailed examples of all advanced callback features

[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]

Test Results

    21 files  ±0      21 suites  ±0   6m 34s ⏱️ + 1m 5s
 2 517 tests ±0   2 516 ✅ ±0  1 💤 ±0  0 ❌ ±0 
16 800 runs  ±0  16 799 ✅ ±0  1 💤 ±0  0 ❌ ±0 

Results for commit 76eef34. ± Comparison against base commit f51b285.

[github-actions]

🚀 Benchmark Results

Details

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

AMD EPYC 7763 2.45GHz, 1 CPU, 4 logical and 2 physical cores

.NET SDK 10.0.102

[Host] : .NET 10.0.2 (10.0.2, 10.0.225.61305), X64 RyuJIT x86-64-v3
Job=InProcess  Toolchain=InProcessEmitToolchain  IterationCount=15

LaunchCount=1  WarmupCount=10

Method	Mean	Error	StdDev	Gen0	Gen1	Allocated
Simple_Mockolate	1.552 μs	0.0119 μs	0.0111 μs	0.2270	-	3.73 KB
Simple_Moq	176.897 μs	0.5181 μs	0.4593 μs	0.4883	-	14.55 KB
Simple_NSubstitute	5.832 μs	0.0557 μs	0.0521 μs	0.5493	0.0076	9.09 KB
Simple_FakeItEasy	6.619 μs	0.0304 μs	0.0285 μs	0.4959	-	8.11 KB

[github-actions]

This is addressed in release v1.1.0.