Add ComfyUI photo enhancement VM and photo-enhance.rb client

- hyperstack-vm-photo.toml: L40 GPU VM config (192.168.3.4, ~$1/hr)
  with [comfyui] section for port, model dirs, and pre-downloaded weights
- hyperstack.rb: full ComfyUI provisioning support alongside vLLM/Ollama —
  config accessors, comfyui_install_script (git clone + venv + systemd),
  RemoteProvisioner#install_comfyui, Manager#create integration, UFW rules,
  status/service_mode_summary updates, --comfyui/--no-comfyui CLI flags
- photo-enhance.rb: standalone client — uploads photos, submits ComfyUI
  workflow, polls for output, downloads PNG, converts to JPEG at quality 92
  so file sizes match originals; --watch mode; processed-file manifest
- workflows/photo-enhance.json: Real-ESRGAN x4plus enhance-in-place workflow
  (upscale 4x for enhancement, ImageScaleBy 0.25 back to original resolution)
- README.md: Photo enhancement section with quickstart, config reference,
  workflow customisation notes, and performance table

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/workflows/photo-enhance.json b/workflows/photo-enhance.json
new file mode 100644
index 0000000..6be7dfa
--- /dev/null
+++ b/workflows/photo-enhance.json
@@ -0,0 +1,42 @@
+{
+  "1": {
+    "class_type": "LoadImage",
+    "_meta": {"title": "Load Input Photo"},
+    "inputs": {
+      "image": "NODE_INPUT_IMAGE",
+      "upload": "image"
+    }
+  },
+  "2": {
+    "class_type": "UpscaleModelLoader",
+    "_meta": {"title": "Load Real-ESRGAN Model"},
+    "inputs": {
+      "model_name": "RealESRGAN_x4plus.pth"
+    }
+  },
+  "3": {
+    "class_type": "ImageUpscaleWithModel",
+    "_meta": {"title": "Enhance (internal 4x pass)"},
+    "inputs": {
+      "upscale_model": ["2", 0],
+      "image": ["1", 0]
+    }
+  },
+  "4": {
+    "class_type": "ImageScaleBy",
+    "_meta": {"title": "Scale back to original resolution"},
+    "inputs": {
+      "image": ["3", 0],
+      "upscale_method": "lanczos",
+      "scale_by": 0.25
+    }
+  },
+  "5": {
+    "class_type": "SaveImage",
+    "_meta": {"title": "Save Enhanced Photo"},
+    "inputs": {
+      "images": ["4", 0],
+      "filename_prefix": "enhanced_"
+    }
+  }
+}