odek memory: force extended memory enabled for CLI maintenance commands

The odek memory extended * subcommands (forget, promote, pin, quarantine,
compact) construct ExtendedMemory using DefaultConfig, which has Enabled
= false, so all operations silently failed. Force Enabled = true for the
CLI surface only; the agent tool surface still does not expose promote.

Author: jkyberneees

cmd/odek/memory_cmd.go

@@ -82,6 +82,8 @@ func extendedMemoryCmd(dir string, args []string) error {
 
 	extDir := filepath.Join(dir, "extended")
 	cfg := extended.DefaultConfig()
+	enabled := true
+	cfg.Enabled = &enabled
 	em := extended.New(extDir, nil, cfg)
 
 	switch sub {