feat: Add AtomizerField training data export and intelligent model discovery

Major additions:
- Training data export system for AtomizerField neural network training
- Bracket stiffness optimization study with 50+ training samples
- Intelligent NX model discovery (auto-detect solutions, expressions, mesh)
- Result extractors module for displacement, stress, frequency, mass
- User-generated NX journals for advanced workflows
- Archive structure for legacy scripts and test outputs
- Protocol documentation and dashboard launcher

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

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

examples/Models/Bracket/export_field_dz.fld

@@ -0,0 +1,42 @@
+FIELD: [ResultProbe] : [TABLE]
+FIELD LOCK STATE: [NO]
+DUPLICATE_VALUE_OPTION: [0]
+PARAMETERIZE INDEPENDENT DOMAIN: [NO]
+PERSIST INTERPOL: [NO]
+CREATE INTERPOLATOR: [NO]
+FALLBACK DEFAULT INTERPOLATOR: [YES]
+INTERPOL: [4]
+VALUES OUTSIDE: [2]
+REMOVE DELAUNAY SLIVERS: [NO]
+INDEP VAR: [step] : [] : [] : [0]
+BOUNDS: [0] : [YES] : [0] : [YES] : [21] : [0]
+INDEP VAR: [node_id] : [] : [] : [5]
+BOUNDS: [4] : [YES] : [386] : [YES] : [21] : [382]
+DEP VAR: [x] : [Length] : [mm] : [0]
+DESCRIPTION: ResultProbe
+DESCRIPTION: dz
+DESCRIPTION: 21-Nov-25
+DESCRIPTION: 10:01:00
+START DATA
+0, 382, -0.186936527490616
+0, 383, -0.187061965465546
+0, 384, -0.19048672914505
+0, 385, -0.187501460313797
+0, 386, -0.188479736447334
+0, 4, -0.194222882390022
+0, 11, -0.186952710151672
+0, 14, -0.186952978372574
+0, 8, -0.194223284721375
+0, 122, -0.186969518661499
+0, 123, -0.187117353081703
+0, 124, -0.18759161233902
+0, 125, -0.190486311912537
+0, 126, -0.188595801591873
+0, 129, -0.186926871538162
+0, 58, -0.194396913051605
+0, 153, -0.186969801783562
+0, 154, -0.187117666006088
+0, 155, -0.190486669540405
+0, 156, -0.18759198486805
+0, 157, -0.188596233725548
+END DATA

examples/Models/Bracket/test.unv

@@ -0,0 +1,58 @@
+    -1
+  2414
+         1
+LOADCASE_NAME_KEY Subcase - Statics 1
+         1
+NONE
+EXPRESSION_NAME_KEY dz
+NONE
+Creation time 21-Nov-25   07:14:30
+NONE
+         1         1         1         8         2         1
+         1         0         1         0         1         0         0         0
+         0         0
+  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00
+  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00
+         4
+ -1.94141E-01
+         8
+ -1.94141E-01
+        11
+ -1.86878E-01
+        14
+ -1.86878E-01
+        58
+ -1.94315E-01
+       122
+ -1.86893E-01
+       123
+ -1.87040E-01
+       124
+ -1.87513E-01
+       125
+ -1.90405E-01
+       126
+ -1.88516E-01
+       129
+ -1.86852E-01
+       153
+ -1.86894E-01
+       154
+ -1.87040E-01
+       155
+ -1.90406E-01
+       156
+ -1.87514E-01
+       157
+ -1.88517E-01
+       382
+ -1.86860E-01
+       383
+ -1.86985E-01
+       384
+ -1.90406E-01
+       385
+ -1.87423E-01
+       386
+ -1.88400E-01
+    -1

examples/Models/Bracket/test_csv_field.csv

@@ -0,0 +1,22 @@
+step(),node_id(),x(mm)
+0, 382, -0.186860948801041
+0, 383, -0.186985194683075
+0, 384, -0.190406382083893
+0, 385, -0.187423497438431
+0, 386, -0.188400566577911
+0, 4, -0.194141328334808
+0, 11, -0.186878338456154
+0, 14, -0.186878606677055
+0, 8, -0.194141730666161
+0, 122, -0.186893939971924
+0, 123, -0.187040582299232
+0, 124, -0.187513649463654
+0, 125, -0.190405949950218
+0, 126, -0.188516646623611
+0, 129, -0.186852499842644
+0, 58, -0.194315358996391
+0, 153, -0.186894223093987
+0, 154, -0.187040895223618
+0, 155, -0.190406322479248
+0, 156, -0.187514021992683
+0, 157, -0.188517063856125