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>

studies/bracket_stiffness_optimization_atomizerfield/1_setup/model/bracket_sim1-solution_1.t199472_25.asg

@@ -0,0 +1,32 @@
+Nastran BUFFSIZE=32769 $(c:/program files/siemens/nx2412/nxnastran/conf/nastran.rcf[1])
+Nastran BUFFPOOL=20.0X $(c:/program files/siemens/nx2412/nxnastran/conf/nastran.rcf[4])
+Nastran DIAGA=128 DIAGB=0 $(c:/program files/siemens/nx2412/nxnastran/conf/nastran.rcf[7])
+Nastran REAL=8545370112 $(Memory limit for MPI and other specialized modules)
+JID='C:\Users\antoi\Documents\Atomaste\Atomizer\studies\bracket_stiffness_optimization_atomizerfield\1_setup\model\bracket_sim1-solution_1.dat'
+OUT='./bracket_sim1-solution_1'
+MEM=3846123520
+MACH='Intel64 Family 6 Model 183 Stepping 1'
+OPER='Windows 10'
+OSV=' '
+MODEL='Intel(R) Core(TM) i7-14700HX (AntoineThinkpad)'
+CONFIG=8666
+NPROC=28
+symbol=DELDIR='c:/program files/siemens/nx2412/nxnastran/scnas/nast/del' $(program default)
+symbol=DEMODIR='c:/program files/siemens/nx2412/nxnastran/scnas/nast/demo' $(program default)
+symbol=SSSALTERDIR='c:/program files/siemens/nx2412/nxnastran/scnas/nast/misc/sssalter' $(program default)
+symbol=TPLDIR='c:/program files/siemens/nx2412/nxnastran/scnas/nast/tpl' $(program default)
+SDIR='c:/users/antoi/appdata/local/temp/bracket_sim1-solution_1.T199472_25'
+DBS='c:/users/antoi/appdata/local/temp/bracket_sim1-solution_1.T199472_25'
+SCR=yes
+SMEM=20.0X
+NEWDEL='c:/program files/siemens/nx2412/nxnastran/scnas/em64tntl/SSS'
+DEL='NXNDEF'
+AUTH='29000@AntoineThinkpad'
+AUTHQUE=0
+MSGCAT='c:/program files/siemens/nx2412/nxnastran/scnas/em64tntl/analysis.msg'
+MSGDEST='f06'
+PROG=bundle
+NEWS='c:/program files/siemens/nx2412/nxnastran/scnas/nast/news.txt'
+UMATLIB='libnxumat.dll'
+UCRPLIB='libucreep.dll'
+USOLLIB='libusol.dll'

studies/bracket_stiffness_optimization_atomizerfield/1_setup/model/export_displacement_field.py

@@ -0,0 +1,91 @@
+"""
+NX Journal - Export Displacement Field for Bracket Stiffness Analysis
+=====================================================================
+
+This journal exports the z-displacement field from a ResultProbe to a .fld file.
+
+Usage:
+    run_journal.exe export_displacement_field.py [sim_file_path]
+
+If sim_file_path is not provided, uses Bracket_sim1.sim in the same directory.
+"""
+
+import sys
+import math
+from pathlib import Path
+import NXOpen
+import NXOpen.CAE
+import NXOpen.Fields
+
+
+def main(args):
+    """
+    Export displacement field from NX simulation results.
+
+    Args:
+        args: Command line arguments, optionally including sim file path
+
+    The ResultProbe should already be defined in the simulation file
+    with z-displacement as the measured quantity.
+    """
+    theSession = NXOpen.Session.GetSession()
+
+    # Determine sim file to open
+    if len(args) > 0:
+        sim_file = Path(args[0])
+    else:
+        # Default: Bracket_sim1.sim in same directory as this journal
+        journal_dir = Path(__file__).parent
+        sim_file = journal_dir / "Bracket_sim1.sim"
+
+    if not sim_file.exists():
+        print(f"ERROR: Simulation file not found: {sim_file}")
+        return 1
+
+    # Open the simulation file
+    print(f"Opening simulation: {sim_file}")
+    try:
+        basePart1, partLoadStatus1 = theSession.Parts.OpenBaseDisplay(str(sim_file))
+        partLoadStatus1.Dispose()
+    except Exception as e:
+        print(f"ERROR: Failed to open simulation: {e}")
+        return 1
+
+    workSimPart = theSession.Parts.BaseWork
+    if workSimPart is None:
+        print("ERROR: No work part loaded after opening simulation.")
+        return 1
+
+    # Get the FieldManager
+    fieldManager = workSimPart.FindObject("FieldManager")
+    if fieldManager is None:
+        print("ERROR: FieldManager not found. Make sure simulation results are loaded.")
+        return 1
+
+    # Find the ResultProbe (should be pre-configured for z-displacement)
+    resultProbe = fieldManager.FindObject("ResultProbe")
+    if resultProbe is None:
+        print("ERROR: ResultProbe not found. Please create a ResultProbe for z-displacement.")
+        return 1
+
+    # Prepare probe array for export
+    probes = [NXOpen.CAE.ResultProbe.Null] * 1
+    probes[0] = resultProbe
+
+    # Determine output file path (same directory as this journal)
+    journal_dir = Path(__file__).parent
+    output_file = journal_dir / "export_field_dz.fld"
+
+    # Export to field file
+    print(f"Exporting displacement field to: {output_file}")
+    theSession.ResultManager.ExportProbesToFieldFile(probes, str(output_file))
+
+    print(f"[OK] Successfully exported displacement field")
+    print(f"  Output: {output_file}")
+
+    return 0
+
+
+if __name__ == '__main__':
+    exit_code = main(sys.argv[1:])
+    sys.exit(exit_code)

studies/bracket_stiffness_optimization_atomizerfield/1_setup/model/export_field_dz.fld

@@ -0,0 +1,48 @@
+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] : [27] : [0]
+INDEP VAR: [node_id] : [] : [] : [5]
+BOUNDS: [3] : [YES] : [413] : [YES] : [27] : [407]
+DEP VAR: [x] : [Length] : [mm] : [0]
+DESCRIPTION: ResultProbe
+DESCRIPTION: dz
+DESCRIPTION: 21-Nov-25
+DESCRIPTION: 19:25:36
+START DATA
+0, 407, -0.0941346362233162
+0, 408, -0.0937454551458359
+0, 409, -0.0935764610767365
+0, 410, -0.0935385450720787
+0, 411, -0.0980110093951225
+0, 412, -0.0959530174732208
+0, 413, -0.094814196228981
+0, 3, -0.10150358080864
+0, 6, -0.101503469049931
+0, 14, -0.0935568511486053
+0, 11, -0.0935568138957024
+0, 113, -0.0937929674983025
+0, 114, -0.0942020565271378
+0, 115, -0.0935586988925934
+0, 116, -0.0936075374484062
+0, 117, -0.0979839861392975
+0, 118, -0.0960513949394226
+0, 119, -0.0949068069458008
+0, 52, -0.101693071424961
+0, 145, -0.0942021608352661
+0, 146, -0.093793049454689
+0, 147, -0.0935587361454964
+0, 148, -0.093607597053051
+0, 149, -0.0979839861392975
+0, 150, -0.0960515514016151
+0, 151, -0.0949069485068321
+0, 122, -0.0935398191213608
+END DATA