Add global seed node

__init__.py

@@ -317,6 +317,27 @@ class SxCPSeedControl:
         )
 
 
+class SxCPGlobalSeed:
+    @classmethod
+    def INPUT_TYPES(cls):
+        seed_spec = {"default": 20260614, "min": 0, "max": 0xFFFFFFFF, "step": 1}
+        return {
+            "required": {
+                "global_seed": ("INT", seed_spec),
+            }
+        }
+
+    RETURN_TYPES = ("INT", "STRING", "STRING")
+    RETURN_NAMES = ("seed", "seed_config", "summary")
+    FUNCTION = "build"
+    CATEGORY = "prompt_builder"
+
+    def build(self, global_seed):
+        seed = max(0, min(0xFFFFFFFF, int(global_seed)))
+        config = build_seed_lock_config_json(base_seed=seed, reroll_axis="none", reroll_seed=-1)
+        return seed, config, f"global seed {seed}; all axes locked"
+
+
 class SxCPSeedLocker:
     @classmethod
     def INPUT_TYPES(cls):
@@ -1457,6 +1478,7 @@ class SxCPInstaOFPromptPair:
 
 NODE_CLASS_MAPPINGS = {
     "SxCPPromptBuilder": SxCPPromptBuilder,
+    "SxCPGlobalSeed": SxCPGlobalSeed,
     "SxCPSeedControl": SxCPSeedControl,
     "SxCPSeedLocker": SxCPSeedLocker,
     "SxCPCameraControl": SxCPCameraControl,
@@ -1481,6 +1503,7 @@ NODE_CLASS_MAPPINGS.update(LOOP_NODE_CLASS_MAPPINGS)
 
 NODE_DISPLAY_NAME_MAPPINGS = {
     "SxCPPromptBuilder": "SxCP Prompt Builder",
+    "SxCPGlobalSeed": "SxCP Global Seed",
     "SxCPSeedControl": "SxCP Seed Control",
     "SxCPSeedLocker": "SxCP Seed Locker",
     "SxCPCameraControl": "SxCP Camera Control",