Add SUPIR photo restoration + local colour corrections

- workflows/photo-enhance.json: replace Real-ESRGAN-only pipeline with
  SUPIR_Upscale (SUPIR-v0Q + SDXL base backbone). Parameters:
  20 steps, scale_by=1.0 (original resolution), Wavelet colour fix,
  tiled VAE + tiled sampling for L40 VRAM headroom.
- photo-enhance.rb: add ImageMagick colour corrections after download:
  S-curve contrast (-sigmoidal-contrast 3,50%), +20% saturation
  (-modulate 100,120,100), micro-contrast sharpening (-unsharp).
  These stack on top of SUPIR's internal Wavelet colour fix.
- hyperstack.rb: update comfyui_install_script to install ComfyUI-SUPIR
  custom node and download both SUPIR-v0Q + sd_xl_base_1.0 on provision.
- hyperstack.rb: extend status_config_loaders to auto-discover
  hyperstack-vm-photo.toml so --watch shows the photo VM.

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

1 files changed, 29 insertions, 22 deletions

diff --git a/workflows/photo-enhance.json b/workflows/photo-enhance.json
index 6be7dfa..57910e9 100644
--- a/workflows/photo-enhance.json
+++ b/workflows/photo-enhance.json
@@ -8,35 +8,42 @@
     }
   },
   "2": {
-    "class_type": "UpscaleModelLoader",
-    "_meta": {"title": "Load Real-ESRGAN Model"},
+    "class_type": "SUPIR_Upscale",
+    "_meta": {"title": "SUPIR Photo Restoration"},
     "inputs": {
-      "model_name": "RealESRGAN_x4plus.pth"
+      "supir_model":              "SUPIR-v0Q.ckpt",
+      "sdxl_model":               "sd_xl_base_1.0.safetensors",
+      "image":                    ["1", 0],
+      "seed":                     42,
+      "resize_method":            "lanczos",
+      "scale_by":                 1.0,
+      "steps":                    20,
+      "restoration_scale":        -1,
+      "cfg_scale":                7.5,
+      "a_prompt":                 "high quality photograph, sharp, detailed, natural colors",
+      "n_prompt":                 "blurry, noisy, low quality, artifact, overexposed, underexposed",
+      "s_churn":                  5,
+      "s_noise":                  1.003,
+      "control_scale":            1.0,
+      "cfg_scale_start":          4.0,
+      "control_scale_start":      0.0,
+      "color_fix_type":           "Wavelet",
+      "keep_model_loaded":        true,
+      "use_tiled_vae":            true,
+      "encoder_tile_size_pixels": 512,
+      "decoder_tile_size_latent": 64,
+      "fp8_unet":                 false,
+      "use_tiled_sampling":       true,
+      "sampler_tile_size":        128,
+      "sampler_tile_stride":      64
     }
   },
   "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_"
+      "images":           ["2", 0],
+      "filename_prefix":  "enhanced_"
     }
   }
 }