token: ditch the generic bundle in favor of specialized struct

It's kust cleaner that way, the generic has no upside.

token/delegation/delegationtest/generator/generator.go

@@ -217,7 +217,6 @@ func (g *generator) writeGoFile() error {
 	Println("import (")
 	Println("\t\"github.com/ipfs/go-cid\"")
 	Println()
-	Println("\t\"github.com/ucan-wg/go-ucan/token\"")
 	Println("\t\"github.com/ucan-wg/go-ucan/token/delegation\"")
 	Println(")")
 
@@ -243,7 +242,7 @@ func (g *generator) writeGoFile() error {
 	Println("}")
 
 	Println()
-	Println("var AllBundles = []token.Bundle[*delegation.Token]{")
+	Println("var AllBundles = []delegation.Bundle{")
 	for _, d := range g.dlgs {
 		Printf("\t%sBundle,\n", d.name)
 	}

token/delegation/delegationtest/token.go

@@ -8,7 +8,6 @@ import (
 	"github.com/ipfs/go-cid"
 
 	"github.com/ucan-wg/go-ucan/pkg/command"
-	"github.com/ucan-wg/go-ucan/token"
 	"github.com/ucan-wg/go-ucan/token/delegation"
 )
 
@@ -39,7 +38,7 @@ var fs embed.FS
 var _ delegation.Loader = (*DelegationLoader)(nil)
 
 type DelegationLoader struct {
-	bundles map[cid.Cid]token.Bundle[*delegation.Token]
+	bundles map[cid.Cid]delegation.Bundle
 }
 
 var (
@@ -76,7 +75,7 @@ func loadDelegations() (*DelegationLoader, error) {
 		return nil, err
 	}
 
-	bundles := make(map[cid.Cid]token.Bundle[*delegation.Token], len(dirEntries))
+	bundles := make(map[cid.Cid]delegation.Bundle, len(dirEntries))
 
 	for _, dirEntry := range dirEntries {
 		data, err := fs.ReadFile(filepath.Join(TokenDir, dirEntry.Name()))
@@ -89,7 +88,7 @@ func loadDelegations() (*DelegationLoader, error) {
 			return nil, err
 		}
 
-		bundles[id] = token.Bundle[*delegation.Token]{Cid: id, Decoded: tkn, Sealed: data}
+		bundles[id] = delegation.Bundle{Cid: id, Decoded: tkn, Sealed: data}
 	}
 
 	return &DelegationLoader{
@@ -107,7 +106,7 @@ func CidToName(id cid.Cid) string {
 	return cidToName[id]
 }
 
-func mustGetBundle(id cid.Cid) token.Bundle[*delegation.Token] {
+func mustGetBundle(id cid.Cid) delegation.Bundle {
 	bundle, ok := GetDelegationLoader().bundles[id]
 	if !ok {
 		panic(delegation.ErrDelegationNotFound)

token/delegation/delegationtest/token_gen.go

@@ -5,7 +5,6 @@ package delegationtest
 import (
 	"github.com/ipfs/go-cid"
 
-	"github.com/ucan-wg/go-ucan/token"
 	"github.com/ucan-wg/go-ucan/token/delegation"
 )
 
@@ -196,7 +195,7 @@ var AllTokens = []*delegation.Token{
 	TokenErinFrank_ValidExamplePolicy,
 }
 
-var AllBundles = []token.Bundle[*delegation.Token]{
+var AllBundles = []delegation.Bundle{
 	TokenAliceBobBundle,
 	TokenBobCarolBundle,
 	TokenCarolDanBundle,

token/delegation/utilities.go

@@ -15,3 +15,10 @@ type Loader interface {
 	// If not found, ErrDelegationNotFound is returned.
 	GetDelegation(cid cid.Cid) (*Token, error)
 }
+
+// Bundle carries together a decoded token with its Cid and raw signed data.
+type Bundle struct {
+	Cid     cid.Cid
+	Decoded *Token
+	Sealed  []byte
+}