Chore (examples): add missing seed for descriptors in examples (#5098)

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## Summary by CodeRabbit

* **Chores**
* Updated example configuration files to include configurable seed
parameters across all model variants (DPA2, DPA3, SE-Atten, SE-E3-TEBD,
multi-task learning), enhancing reproducibility and configuration
flexibility.

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settings.</sub>

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Author: iProzd

examples/water/dpa2/input_torch_compressible.json

@@ -53,7 +53,8 @@
         "g1_out_mlp": true
       },
       "precision": "float64",
-      "add_tebd_to_repinit_out": false
+      "add_tebd_to_repinit_out": false,
+      "seed": 1
     },
     "fitting_net": {
       "neuron": [

examples/water/dpa2/input_torch_large.json

@@ -52,7 +52,8 @@
         "g1_out_mlp": true
       },
       "precision": "float64",
-      "add_tebd_to_repinit_out": false
+      "add_tebd_to_repinit_out": false,
+      "seed": 1
     },
     "fitting_net": {
       "neuron": [

examples/water/dpa2/input_torch_medium.json

@@ -52,7 +52,8 @@
         "g1_out_mlp": true
       },
       "precision": "float64",
-      "add_tebd_to_repinit_out": false
+      "add_tebd_to_repinit_out": false,
+      "seed": 1
     },
     "fitting_net": {
       "neuron": [

examples/water/dpa2/input_torch_small.json

@@ -52,7 +52,8 @@
         "g1_out_mlp": true
       },
       "precision": "float64",
-      "add_tebd_to_repinit_out": false
+      "add_tebd_to_repinit_out": false,
+      "seed": 1
     },
     "fitting_net": {
       "neuron": [

examples/water/dpa3/input_torch.json

@@ -34,7 +34,8 @@
       "activation_function": "silut:10.0",
       "use_tebd_bias": false,
       "precision": "float32",
-      "concat_output_tebd": false
+      "concat_output_tebd": false,
+      "seed": 1
     },
     "fitting_net": {
       "neuron": [

examples/water/dpa3/input_torch_dynamic.json

@@ -36,7 +36,8 @@
       "activation_function": "silut:10.0",
       "use_tebd_bias": false,
       "precision": "float32",
-      "concat_output_tebd": false
+      "concat_output_tebd": false,
+      "seed": 1
     },
     "fitting_net": {
       "neuron": [

examples/water/se_atten/input_torch.json

@@ -25,7 +25,8 @@
       "activation_function": "tanh",
       "scaling_factor": 1.0,
       "normalize": true,
-      "temperature": 1.0
+      "temperature": 1.0,
+      "seed": 1
     },
     "fitting_net": {
       "neuron": [

examples/water/se_e3_tebd/input_torch.json

@@ -17,7 +17,8 @@
       ],
       "tebd_dim": 8,
       "tebd_input_mode": "concat",
-      "activation_function": "tanh"
+      "activation_function": "tanh",
+      "seed": 1
     },
     "fitting_net": {
       "neuron": [

examples/water_multi_task/pytorch_example/input_torch.json

@@ -54,6 +54,7 @@
         },
         "precision": "float64",
         "add_tebd_to_repinit_out": false,
+        "seed": 1,
         "_comment": " that's all"
       },
       "_comment": "that's all"

examples/water_multi_task/pytorch_example/input_torch_sharefit.json

@@ -54,6 +54,7 @@
         },
         "precision": "float64",
         "add_tebd_to_repinit_out": false,
+        "seed": 1,
         "_comment": " that's all"
       },
       "shared_fit_with_id": {