fix: correct CogVideoX node types for I2V workflow

- Change CogVideoXSampler -> CogVideoSampler
- Change DiffusersLoader -> DownloadAndLoadCogVideoModel
- Change CLIPTextEncode -> CogVideoTextEncode
- Change VAEDecode -> CogVideoDecode
- Update model path to THUDM/CogVideoX-5b-I2V
- Fix sampler parameters: [seed, scheduler, num_frames, steps, cfg]
- Add CogVideoDecode tiling parameters

Note: Workflow still needs proper node connections (links array is empty)

comfyui/workflows/image-to-video/cogvideox-i2v-production-v1.json

@@ -27,20 +27,20 @@
     },
     {
       "id": 2,
-      "type": "DiffusersLoader",
+      "type": "DownloadAndLoadCogVideoModel",
       "pos": [
         50,
         500
       ],
       "widgets_values": [
-        "diffusion_models/CogVideoX-5b"
+        "THUDM/CogVideoX-5b-I2V"
       ],
       "title": "CogVideoX-5b Loader",
       "flags": {},
       "order": 1,
       "mode": 0,
       "properties": {
-        "Node name for S&R": "DiffusersLoader"
+        "Node name for S&R": "DownloadAndLoadCogVideoModel"
       },
       "size": {
         "0": 350,
@@ -49,7 +49,7 @@
     },
     {
       "id": 3,
-      "type": "CLIPTextEncode",
+      "type": "CogVideoTextEncode",
       "pos": [
         450,
         100
@@ -62,7 +62,7 @@
       "order": 2,
       "mode": 0,
       "properties": {
-        "Node name for S&R": "CLIPTextEncode"
+        "Node name for S&R": "CogVideoTextEncode"
       },
       "size": {
         "0": 400,
@@ -71,25 +71,24 @@
     },
     {
       "id": 4,
-      "type": "CogVideoXSampler",
+      "type": "CogVideoSampler",
       "pos": [
         800,
         100
       ],
       "widgets_values": [
         42,
-        "fixed",
-        50,
-        6.0,
+        "CogVideoXDDIM",
         49,
-        6
+        50,
+        6.0
       ],
       "title": "CogVideoX Sampler (6s @ 8fps)",
       "flags": {},
       "order": 3,
       "mode": 0,
       "properties": {
-        "Node name for S&R": "CogVideoXSampler"
+        "Node name for S&R": "CogVideoSampler"
       },
       "size": {
         "0": 315,
@@ -98,7 +97,7 @@
     },
     {
       "id": 5,
-      "type": "VAEDecode",
+      "type": "CogVideoDecode",
       "pos": [
         1150,
         100
@@ -108,8 +107,15 @@
       "order": 4,
       "mode": 0,
       "properties": {
-        "Node name for S&R": "VAEDecode"
+        "Node name for S&R": "CogVideoDecode"
       },
+      "widgets_values": [
+        true,
+        240,
+        360,
+        0.25,
+        0.25
+      ],
       "size": {
         "0": 315,
         "1": 100