feat: declare command result types with Binding[Args, OK]

Carry each command's result type alongside its arguments by migrating
declarations to commands.MustParse[*Args, *OK]. Handlers and clients then
derive the result type from the command, so result/handler type mismatches
are caught at compile time instead of at run time.

Tracks the ucantone bind.Binding[Args, OK] change: fil-forge/ucantone#17

Author: frrist

commands/access/claim.go

@@ -8,4 +8,4 @@ type ClaimArguments = commands.Unit
 
 // Claim can be invoked by an agent to claim a set of delegations from the
 // account.
-var Claim = commands.MustParse[*ClaimArguments]("/access/claim")
+var Claim = commands.MustParse[*ClaimArguments, *ClaimOK]("/access/claim")

commands/access/confirm.go

@@ -17,7 +17,7 @@ type ConfirmOK = ClaimOK
 const ConfirmMetaKey = "accessConfirm"
 
 // Confirm can be invoked by an agent to confirm an access request.
-var Confirm = commands.MustParse[*ConfirmArguments]("/access/confirm")
+var Confirm = commands.MustParse[*ConfirmArguments, *ConfirmOK]("/access/confirm")
 
 const (
 	InvalidAccessConfirmSubjectErrorName = "InvalidAccessConfirmSubject"

commands/access/delegate.go

@@ -8,7 +8,7 @@ type DelegateOK = commands.Unit
 
 // Delegate can be invoked by an agent to delegate a set of capabilities that
 // may be subsequently claimed by another agent.
-var Delegate = commands.MustParse[*DelegateArguments]("/access/delegate")
+var Delegate = commands.MustParse[*DelegateArguments, *DelegateOK]("/access/delegate")
 
 const (
 	DelegationNotFoundErrorName  = "DelegationNotFound"

commands/access/grant.go

@@ -18,7 +18,7 @@ type GrantOK = ClaimOK
 // Grant can be invoked by an agent to request that a set of capabilities be
 // granted directly. Unlike Request -> Confirm, Grant is one-shot: the
 // executor decides immediately whether to issue the delegation.
-var Grant = commands.MustParse[*GrantArguments](GrantCommand)
+var Grant = commands.MustParse[*GrantArguments, *GrantOK](GrantCommand)
 
 const (
 	UnknownAbilityErrorName    = "UnknownAbility"

commands/access/request.go

@@ -11,7 +11,7 @@ const RequestMetaKey = "accessRequest"
 
 // Request can be invoked by an agent to request set of capabilities from the
 // account.
-var Request = commands.MustParse[*RequestArguments]("/access/request")
+var Request = commands.MustParse[*RequestArguments, *RequestOK]("/access/request")
 
 const (
 	InvalidAuthorizationAccountErrorName  = "InvalidAuthorizationAccount"

commands/assert/equals.go

@@ -7,4 +7,4 @@ import "github.com/fil-forge/libforge/commands"
 type EqualsOK = commands.Unit
 
 // Equals claims data is referred to by another CID e.g CAR CID & Piece CID
-var Equals = commands.MustParse[*EqualsArguments]("/assert/equals")
+var Equals = commands.MustParse[*EqualsArguments, *EqualsOK]("/assert/equals")

commands/assert/index.go

@@ -8,4 +8,4 @@ type IndexOK = commands.Unit
 
 // Index claims that a content graph can be found in blob(s) that are identified
 // and indexed in the given index CID.
-var Index = commands.MustParse[*IndexArguments]("/assert/index")
+var Index = commands.MustParse[*IndexArguments, *IndexOK]("/assert/index")

commands/assert/location.go

@@ -6,4 +6,4 @@ import "github.com/fil-forge/libforge/commands"
 
 type LocationOK = commands.Unit
 
-var Location = commands.MustParse[*LocationArguments]("/assert/location")
+var Location = commands.MustParse[*LocationArguments, *LocationOK]("/assert/location")

commands/bind.go

@@ -1,14 +1,17 @@
 package commands
 
-import "github.com/fil-forge/ucantone/validator/bindcom"
+import (
+	"github.com/fil-forge/ucantone/bind"
+	"github.com/fil-forge/ucantone/ucan"
+)
 
-// MustParse is like [bindcom.Parse] but panics if the command cannot be
+// MustParse is like [bind.Parse] but panics if the command cannot be
 // constructed. It exists for package-level command declarations where the
 // command and options are static — any error indicates a programming bug
 // (malformed command string, invalid option) and should fail loudly at init
 // rather than be silently dropped with `, _`.
-func MustParse[A bindcom.Arguments](cmd string) bindcom.Command[A] {
-	c, err := bindcom.Parse[A](cmd)
+func MustParse[Args, OK ucan.CBORValue](cmd string) bind.Binding[Args, OK] {
+	c, err := bind.Parse[Args, OK](cmd)
 	if err != nil {
 		panic(err)
 	}

commands/blob/accept.go

@@ -4,4 +4,4 @@ package blob
 
 import "github.com/fil-forge/libforge/commands"
 
-var Accept = commands.MustParse[*AcceptArguments]("/blob/accept")
+var Accept = commands.MustParse[*AcceptArguments, *AcceptOK]("/blob/accept")