42789ffd0f
Rewrite import prefix git.dev.alexdunmow.com/block/core/{plugin,blocks,
templates,abi} to git.dev.alexdunmow.com/block/pluginsdk/* across the CLI's
plugin build/verify logic (internal/bnp), plugin commands (cmd/ninja/cmd),
and the wasm build fixtures (testdata/fixture, testdata/capfixture). go.mod
adds pluginsdk@v0.1.0; core is retained only for cmd/ninja/cmd/theme.go
(ParseModFull), which is left untouched as in-flight work.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>