Templates, Benchmarks and more CI

[jsneedles]

This adds support for creating & listing Templates.

Also a lot of code reorganization/tweaking.

Also, because fun - Benchmarks!

Finally, CI improvements.

[github-actions]

Test results

78 tests   78 ✅  0s ⏱️
 1 suites   0 💤
 1 files     0 ❌

Results for commit f97e7d3.

[github-actions]

Test results

78 tests   78 ✅  0s ⏱️
 1 suites   0 💤
 1 files     0 ❌

Results for commit be6e681.

♻️ This comment has been updated with latest results.

[github-actions]

Benchmark Results

No benchmark results found.

[github-actions]

Benchmark Results

HtmlCssToImage.Benchmarks.Benchmarks.HmacBenchmark

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 10.0.101
  [Host]  : .NET 10.0.1 (10.0.1, 10.0.125.57005), X64 RyuJIT x86-64-v3
  .NET 10 : .NET 10.0.1 (10.0.1, 10.0.125.57005), X64 RyuJIT x86-64-v3

Job=.NET 10  EnvironmentVariables=DOTNET_TieredPGO=0  Runtime=.NET 10.0  
Server=True  MaxIterationCount=20  MaxWarmupIterationCount=5  
MinWarmupIterationCount=2  

Method	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
Hmac_Standard_Instance	2.063 μs	0.0311 μs	0.0291 μs	1.00	0.02	0.1030	0.0076	0.0076	-	NA
HCTI_HmacToken_Optimized	1.867 μs	0.0111 μs	0.0098 μs	0.91	0.01	0.0134	-	-	152 B	NA

HtmlCssToImage.Benchmarks.Benchmarks.MakeAuthHeaderBenchmark

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 10.0.101
  [Host]  : .NET 10.0.1 (10.0.1, 10.0.125.57005), X64 RyuJIT x86-64-v3
  .NET 10 : .NET 10.0.1 (10.0.1, 10.0.125.57005), X64 RyuJIT x86-64-v3

Job=.NET 10  EnvironmentVariables=DOTNET_TieredPGO=0  Runtime=.NET 10.0  
Server=True  MaxIterationCount=20  MaxWarmupIterationCount=5  
MinWarmupIterationCount=2  

Method	Mean	Error	StdDev	Ratio	Gen0	Allocated	Alloc Ratio
AuthHeader_Standard_StringFormat	89.60 ns	0.676 ns	0.599 ns	1.00	0.0371	376 B	1.00
HCTI_AuthHeader_Optimized	75.27 ns	0.504 ns	0.447 ns	0.84	0.0221	168 B	0.45

HtmlCssToImage.Benchmarks.Benchmarks.QueryStringEncoderBenchmark

BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.3 LTS (Noble Numbat)
AMD EPYC 9V74 2.60GHz, 1 CPU, 4 logical and 2 physical cores
.NET SDK 10.0.101
  [Host]  : .NET 10.0.1 (10.0.1, 10.0.125.57005), X64 RyuJIT x86-64-v3
  .NET 10 : .NET 10.0.1 (10.0.1, 10.0.125.57005), X64 RyuJIT x86-64-v3

Job=.NET 10  EnvironmentVariables=DOTNET_TieredPGO=0  Runtime=.NET 10.0  
Server=True  MaxIterationCount=20  MaxWarmupIterationCount=5  
MinWarmupIterationCount=2  

Method	Mean	Error	StdDev	Ratio	Gen0	Allocated	Alloc Ratio
BuiltIn_HttpUtility	1.082 μs	0.0043 μs	0.0038 μs	1.00	0.2937	2976 B	1.00
HCTI_QueryStringEncoder	1.056 μs	0.0053 μs	0.0050 μs	0.98	0.1450	744 B	0.25

HtmlCssToImage.Benchmarks.Benchmarks.TemplateListUrlBenchmark

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 10.0.101
  [Host]  : .NET 10.0.1 (10.0.1, 10.0.125.57005), X64 RyuJIT x86-64-v3
  .NET 10 : .NET 10.0.1 (10.0.1, 10.0.125.57005), X64 RyuJIT x86-64-v3

Job=.NET 10  EnvironmentVariables=DOTNET_TieredPGO=0  Runtime=.NET 10.0  
Server=True  MaxIterationCount=20  MaxWarmupIterationCount=5  
MinWarmupIterationCount=2  

Method	templateId	nextPageStart	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Allocated	Alloc Ratio
Basic	?	?	65.53 ns	0.350 ns	0.311 ns	1.00	0.01	0.0210	160 B	1.00
Optimized	?	?	24.90 ns	0.381 ns	0.357 ns	0.38	0.01	0.0095	96 B	0.60
Basic	t-daa(...)2efe6 [38]	?	91.57 ns	1.217 ns	1.139 ns	1.00	0.02	0.0340	344 B	1.00
Optimized	t-daa(...)2efe6 [38]	?	30.27 ns	0.124 ns	0.104 ns	0.33	0.00	0.0160	176 B	0.51
Basic	t-daa(...)2efe6 [38]	1735689600	84.85 ns	1.100 ns	1.028 ns	1.00	0.02	0.0323	328 B	1.00
Optimized	t-daa(...)2efe6 [38]	1735689600	44.01 ns	0.618 ns	0.578 ns	0.52	0.01	0.0215	224 B	0.68