🤖 codex: bump openclaw pins

What:
- update pinned inputs/pkgs for nix-openclaw (best-effort)

Why:
- keep the flake fresh automatically

Tests:
- nix build .#openclaw-gateway --accept-flake-config
- nix build .#openclaw-app --accept-flake-config (darwin only)

nix/generated/openclaw-config-options.nix

@@ -1,4 +1,4 @@
-# Generated from upstream OpenClaw schema at rev eb0758e1722c05e4c6cb359ae8983cf5cf372c45. DO NOT EDIT.
+# Generated from upstream OpenClaw schema at rev 6ff7e8f42ee9c8efb7f38eaf73e70a9dead4ca98. DO NOT EDIT.
 # Generator: nix/scripts/generate-config-options.ts
 { lib }:
 let
@@ -12669,6 +12669,10 @@ in
     }; }));
       default = null;
     };
+    silenceTimeoutMs = lib.mkOption {
+      type = t.nullOr (t.int);
+      default = null;
+    };
     voiceAliases = lib.mkOption {
       type = t.nullOr (t.attrsOf (t.str));
       default = null;
@@ -13881,6 +13885,15 @@ in
         }; }) ]) ]);
           default = null;
         };
+        brave = lib.mkOption {
+          type = t.nullOr (t.submodule { options = {
+          mode = lib.mkOption {
+            type = t.nullOr (t.oneOf [ (t.enum [ "web" ]) (t.enum [ "llm-context" ]) ]);
+            default = null;
+          };
+        }; });
+          default = null;
+        };
         cacheTtlMinutes = lib.mkOption {
           type = t.nullOr (t.number);
           default = null;

nix/sources/openclaw-source.nix

@@ -2,7 +2,7 @@
 {
   owner = "openclaw";
   repo = "openclaw";
-  rev = "eb0758e1722c05e4c6cb359ae8983cf5cf372c45";
-  hash = "sha256-X2Lbvmn5U+EvYzyWXGxHpP9VQ30D2Hw2TH1/eCUb820=";
+  rev = "6ff7e8f42ee9c8efb7f38eaf73e70a9dead4ca98";
+  hash = "sha256-CSP10L8n4BPhNZupsua+ZHIBmYM5sXdmz1LGSX7SdXE=";
   pnpmDepsHash = "sha256-a5boInOukf1v5B3bvAEcRGsW0j6JIVkmZ6cERxXJCN4=";
 }