Prevent REPL command dispatch loop (#3576)

* Prevent REPL command dispatch loop

The problem: The interactive shell recursively invokes the root command
for each line. The active command is stored in a private context value,
so reusing the outer context without filtering makes the nested command
inherit itself as its parent and causes command dispatch to loop
indefinitely after input is submitted.

The fix: This patch wraps the REPL dispatch context to hide
active-command while preserving the application context. This avoids the
infinite loop and allows command dispatch to execute normally.

Signed-off-by: James Vasile <james@jamesvasile.com>

* Add //nolint

---------

Signed-off-by: James Vasile <james@jamesvasile.com>

Author: jvasile

internal/action/repl.go

@@ -86,7 +86,7 @@ READ:
 		default:
 		}
 
-		if err := cmd.Root().Run(ctx, append([]string{"gopass"}, args...)); err != nil {
+		if err := cmd.Root().Run(replContext{Context: ctx}, append([]string{"gopass"}, args...)); err != nil {
 			continue
 		}
 	}
@@ -147,6 +147,21 @@ func unescapeEntry(s string) string {
 // completionSpec describes what candidates a command should complete against.
 type completionSpec int
 
+// replContext filters out urfave/cli's private active-command value from a
+// nested command invocation. This prevents infinite loops as the nested
+// invocation would otherwise inherit the command currently being executed.
+type replContext struct {
+	context.Context //nolint:containedctx
+}
+
+func (c replContext) Value(key any) any {
+	if fmt.Sprint(key) == "cli.context" {
+		return nil
+	}
+
+	return c.Context.Value(key)
+}
+
 const (
 	completeNone       completionSpec = iota
 	completeEntries                   // secret entries