Add portfolio visual smoke baselines

Author: eboody

.gitignore

@@ -4,4 +4,11 @@ target
 rustc-ice-*.txt
 artifacts/visual/current
 artifacts/
+!artifacts/
+!artifacts/visual/
+artifacts/visual/*
+!artifacts/visual/baseline/
+!artifacts/visual/baseline/**
+artifacts/visual/baseline/portfolio-smoke/lab-desktop-light.png
+artifacts/visual/baseline/portfolio-smoke/lab-mobile-dark.png
 .playwright-browsers/

Cargo.lock

@@ -7,6 +7,7 @@ edition = "2024"
 default = []
 visual-snapshot = [
     "dep:clap",
+    "dep:image",
     "dep:playwright",
     "dep:serde_json",
     "dep:tokio",
@@ -17,6 +18,7 @@ visual-snapshot = [
 [dependencies]
 base64 = "0.22.1"
 clap = { version = "4.6.0", features = ["derive"], optional = true }
+image = { version = "0.25.6", default-features = false, features = ["png"], optional = true }
 playwright = { version = "0.0.20", optional = true }
 serde_json = { version = "1.0.149", optional = true }
 tokio = { version = "1", features = ["macros", "rt-multi-thread", "time"], optional = true }