Commit Alpine.js to the repo instead of unpacking it at build time (closes #163)

static/js/alpine.min.js is now committed: package/dist/cdn.min.js from
the @alpinejs/csp 3.14.9 npm package, byte for byte, taken once from the
package file that was in 3p/. The build no longer unpacks it, so
script/assets, the assets make target, its Dockerfile steps and the
ignore entries for the file are gone, and so is the package file.
Prettier and ESLint both ignore the file, so it stays as published.
Comments and the README now describe the committed file.

Model: opus-5-5

Dockerfile

@@ -204,8 +204,9 @@ RUN version="$(make version VERSION="$VERSION")"; \
         esac; \
     fi
 
-# The Makefile's build target builds with cgo off, so the binary is
+# Builds through the Makefile's build target, which builds with cgo off, so
-# statically linked and runs on the Alpine runtime image below.
+# the binary is statically linked and runs on the Alpine runtime image below
+# as it is.
 RUN make build VERSION="$VERSION"
 
 # Runtime stage

internal/server/static_assets_test.go

@@ -13,6 +13,7 @@ import (
 
 // TestBaseTemplateScriptsAreServed walks every /s/ script the base
 // template loads on each page and fetches it through the real router.
+// This is the check that each page gets the JavaScript it asks for.
 func TestBaseTemplateScriptsAreServed(t *testing.T) {
 	t.Parallel()