feat: Canvas snapshots for freya-testing

[marc2332]

Closes #702

[codecov]

Codecov Report

Attention: Patch coverage is 4.65116% with 41 lines in your changes missing coverage. Please review.

Project coverage is 73.87%. Comparing base (5d99dbe) to head (32675a4).
Report is 2 commits behind head on main.

❗ Current head 32675a4 differs from pull request most recent head 47e4cb7

Please upload reports for the commit 47e4cb7 to get more accurate results.

Files	Patch %	Lines
crates/testing/src/test_handler.rs	0.00%	41 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #720      +/-   ##
==========================================
- Coverage   73.91%   73.87%   -0.04%     
==========================================
  Files         198      197       -1     
  Lines       20321    20447     +126     
==========================================
+ Hits        15020    15106      +86     
- Misses       5301     5341      +40     

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[github-actions]

Benchmark for fc0601a

Click to view benchmark

Test	Base	PR	%
benchmarks/alignments=true size=21845 depth=8 wide=4 mode=not cached	111.5±0.70ms	110.0±0.56ms	-1.35%
benchmarks/size=100001 depth=2 wide=100000 mode=not cached	26.6±0.62ms	26.2±0.78ms	-1.50%
benchmarks/size=10001 depth=2 wide=10000 mode=not cached	1448.2±19.99µs	1454.6±13.44µs	+0.44%
benchmarks/size=1001 depth=2 wide=1000 mode=not cached	141.3±1.30µs	141.8±1.55µs	+0.35%
benchmarks/size=131071 depth=17 wide=2 mode=not cached	25.4±0.53ms	25.5±0.55ms	+0.39%
benchmarks/size=16383 depth=14 wide=2 mode=not cached	1724.9±11.64µs	1715.5±13.90µs	-0.54%
benchmarks/size=19531 depth=7 wide=5 mode=cached	340.1±13.43µs	338.5±11.90µs	-0.47%
benchmarks/size=19531 depth=7 wide=5 mode=not cached	2.7±0.14ms	2.7±0.06ms	0.00%
benchmarks/size=4095 depth=12 wide=2 mode=not cached	416.9±37.27µs	417.3±58.39µs	+0.10%
benchmarks/size=54241 depth=5 wide=15 mode=cached	283.9±26.51µs	293.1±24.40µs	+3.24%
benchmarks/size=54241 depth=5 wide=15 mode=not cached	6.6±0.12ms	6.5±0.14ms	-1.52%