Initial commit: VLM-as-judge prompt calibration loop

Qwen3-VL image-similarity judge node, external-prompt receptor node,
agent_bridge CLI, example SDXL workflow, and methodology/agent-loop/
calibration-policy docs.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

pyproject.toml

@@ -0,0 +1,19 @@
+[project]
+name = "comfyui-prompt-calibratror"
+description = "VLM-as-judge prompt calibration loop: Qwen3-VL scores generated vs reference images to calibrate the prompt-generation method."
+version = "0.1.0"
+license = { text = "MIT" }
+requires-python = ">=3.10"
+dependencies = [
+    "transformers>=4.57.0",
+    "pillow",
+    "numpy",
+]
+
+[project.urls]
+Repository = "https://github.com/ethanfel/ComfyUI-Prompt-Calibratror"
+
+[tool.comfy]
+PublisherId = "ethanfel"
+DisplayName = "ComfyUI-Prompt-Calibratror"
+Icon = ""