tools: add gidopensees .mat/.cnd schema parser

[ogunc]

Deliverables

• tools/gidopensees_import/schema_model.py — Pydantic v2 IR models (DependencyAction, DependencyRule, FieldSpec, EntrySpec, BookSpec, CatalogSpec)
• tools/gidopensees_import/parse_schemas.py — line-by-line state-machine parser + CLI (python -m tools.gidopensees_import.parse_schemas --mat … --cnd … --out …)
• tools/gidopensees_import/schemas.json — committed output of the parser run
  against gidopensees@HEAD (918 KB, regenerable; checked in for diffable reviews)
• tests/tools/test_parse_schemas.py — 42 passing tests (unit + snapshot +
  integration); integration tests auto-skip when gidopensees repo is absent

Parser features

• Handles CRLF/LF, blank lines, leading whitespace; UTF-8 with latin-1 fallback
• QUESTION types: CB (combo), UNITS, MAT (material ref), SCALAR, TUPLE
• VALUE: strips #WIDTH#(N) hint into width_hint field; preserves #N# prefix raw
• DEPENDENCIES: supports single group per line, multiple space-separated groups per line, RESTORE/HIDE/SET actions, literal and #CURRENT# targets
• TKWIDGET attribution: follows most recent QUESTION; falls back to entry-level
• TITLE: directives stored as section_title on subsequent fields
• STATE: HIDDEN / DISABLED preserved on fields
• END_CONDITION (no space) and END CONDITION (with space) both handled
• Fails loudly with ParseError(path, lineno, message) on malformed input

Verified counts against real gidopensees files

• .mat: 14 books, 58 materials
• .cnd: 6 books, 39 conditions
• Steel02: fields include Steel_grade, Yield_Stress_Fy, Strain-hardening_ratio_b, Parameter_R0, Parameter_cR1, Parameter_cR2; Formulation has 3 dependency rules
• Concrete04_(Popovics_concrete): book = Uniaxial_Concrete_Materials

Manual Verification checklist (for reviewer)

• Open tools/gidopensees_import/schemas.json; spot-check Steel02 fields against OpenSees.mat lines 523-594 — field names, options, defaults.
• Spot-check Concrete04_(Popovics_concrete) in schemas.json against OpenSees.mat lines 901-958.
• Confirm mat_books[0].entries count == 10 (Standard_Uniaxial_Materials book).
• Confirm schemas.json contains exactly 58 mat entries in total.
• Confirm no src/, tests/unit/, or pyproject.toml files were modified.
• Run: python -m tools.gidopensees_import.parse_schemas --mat … --cnd … --out /tmp/test.json and diff against tools/gidopensees_import/schemas.json — must be identical.

Summary

Linked issue

Closes #

Type of change

• Bug fix
• New feature
• Refactor / cleanup
• Documentation
• CI / tooling

Architectural checklist

• No from PySide6 in core/ or services/
• No import openseespy in core/ or views/
• Public functions have type hints + docstrings
• Heavy work runs off the GUI thread

Testing