WIP: Save agent roles integration work before CHORUS rebrand

- Agent roles and coordination features
- Chat API integration testing
- New configuration and workspace management

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

vendor/github.com/multiformats/go-multihash/registry.go

@@ -0,0 +1,31 @@
+package multihash
+
+import (
+	"hash"
+
+	mhreg "github.com/multiformats/go-multihash/core"
+
+	_ "github.com/multiformats/go-multihash/register/all"
+	_ "github.com/multiformats/go-multihash/register/miniosha256"
+)
+
+// Register is an alias for Register in the core package.
+//
+// Consider using the core package instead of this multihash package;
+// that package does not introduce transitive dependencies except for those you opt into,
+// and will can result in smaller application builds.
+func Register(indicator uint64, hasherFactory func() hash.Hash) {
+	mhreg.Register(indicator, hasherFactory)
+}
+
+// Register is an alias for Register in the core package.
+//
+// Consider using the core package instead of this multihash package;
+// that package does not introduce transitive dependencies except for those you opt into,
+// and will can result in smaller application builds.
+func GetHasher(indicator uint64) (hash.Hash, error) {
+	return mhreg.GetHasher(indicator)
+}
+
+// DefaultLengths maps a multihash indicator code to the output size for that hash, in units of bytes.
+var DefaultLengths = mhreg.DefaultLengths