Complete inbox CLI implementation

internal/cli/inbox/reply.go

@@ -17,6 +17,7 @@ type replyOptions struct {
 	kind        string
 	summary     string
 	body        string
+	bodyFile    string
 	payloadJSON string
 }
 
@@ -37,6 +38,11 @@ func newReplyCmd(root *rootOptions) *cobra.Command {
 				return fmt.Errorf("from agent is required")
 			}
 
+			body, err := resolveBodyValue(opts.body, opts.bodyFile)
+			if err != nil {
+				return err
+			}
+
 			sqlDB, err := db.Open(ctx, root.dbPath)
 			if err != nil {
 				return err
@@ -50,7 +56,7 @@ func newReplyCmd(root *rootOptions) *cobra.Command {
 				ToAgent:     opts.to,
 				Kind:        opts.kind,
 				Summary:     opts.summary,
-				Body:        opts.body,
+				Body:        body,
 				PayloadJSON: opts.payloadJSON,
 			})
 			if err != nil {
@@ -81,6 +87,7 @@ func newReplyCmd(root *rootOptions) *cobra.Command {
 	cmd.Flags().StringVar(&opts.kind, "kind", "answer", "Reply kind")
 	cmd.Flags().StringVar(&opts.summary, "summary", "", "Short reply summary")
 	cmd.Flags().StringVar(&opts.body, "body", "", "Reply body")
+	cmd.Flags().StringVar(&opts.bodyFile, "body-file", "", "Read reply body from file")
 	cmd.Flags().StringVar(&opts.payloadJSON, "payload-json", "", "Structured payload JSON string")
 
 	_ = cmd.MarkFlagRequired("thread")