feat: add ControlNet models to model configuration

Added 4 ControlNet models for SD 1.5 and SDXL:
- control_v11p_sd15_canny (SD 1.5 edge detection)
- control_v11p_sd15_depth (SD 1.5 depth maps)
- controlnet-canny-sdxl-1.0 (SDXL edge detection)
- controlnet-depth-sdxl-1.0 (SDXL depth maps)

Total size: ~8GB for all ControlNet models
All marked as non-essential (optional downloads)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

comfyui_models.yaml

@@ -265,6 +265,62 @@ model_categories:
         - source: "mm_sd_v15_v2.ckpt"
           dest: "mm_sd_v15_v2.ckpt"
 
+  # ==========================================================================
+  # CONTROLNET MODELS
+  # ==========================================================================
+  controlnet_models:
+    - repo_id: lllyasviel/control_v11p_sd15_canny
+      description: ControlNet Canny - Edge detection control for SD 1.5
+      size_gb: 1.5
+      essential: false
+      category: controlnet
+      type: controlnet
+      format: safetensors
+      vram_gb: 2
+      notes: Precise edge-based composition control
+      files:
+        - source: "diffusion_pytorch_model.safetensors"
+          dest: "control_v11p_sd15_canny.safetensors"
+
+    - repo_id: lllyasviel/control_v11f1p_sd15_depth
+      description: ControlNet Depth - Depth map control for SD 1.5
+      size_gb: 1.5
+      essential: false
+      category: controlnet
+      type: controlnet
+      format: safetensors
+      vram_gb: 2
+      notes: Depth-based spatial control
+      files:
+        - source: "diffusion_pytorch_model.safetensors"
+          dest: "control_v11p_sd15_depth.safetensors"
+
+    - repo_id: diffusers/controlnet-canny-sdxl-1.0
+      description: ControlNet Canny SDXL - Edge detection for SDXL
+      size_gb: 2.5
+      essential: false
+      category: controlnet
+      type: controlnet
+      format: safetensors
+      vram_gb: 3
+      notes: Canny edge control for SDXL models
+      files:
+        - source: "diffusion_pytorch_model.safetensors"
+          dest: "controlnet-canny-sdxl-1.0.safetensors"
+
+    - repo_id: diffusers/controlnet-depth-sdxl-1.0
+      description: ControlNet Depth SDXL - Depth map for SDXL
+      size_gb: 2.5
+      essential: false
+      category: controlnet
+      type: controlnet
+      format: safetensors
+      vram_gb: 3
+      notes: Depth control for SDXL models
+      files:
+        - source: "diffusion_pytorch_model.safetensors"
+          dest: "controlnet-depth-sdxl-1.0.safetensors"
+
   # ==========================================================================
   # IP-ADAPTER MODELS
   # ==========================================================================