Address PR 22 review feedback

[hbmartin]

• Remove unused StatsPanel.show_model
• Assert cleared submodel options via public OptionList API
• Use expect_type keyword in all Textual query_one calls
• Correct step-label fallback comment

---

Summary by cubic

Make Textual widget queries type-safe, remove an unused stats method, and clear submodel options via the public selector API. This improves reliability across model/error states and aligns tests with the behavior.

• Refactors

  • Use expect_type in all query_one calls for explicit widget types.
  • Remove StatsPanel.show_model.
  • Clarify the step-label fallback comment; update tests to use expect_type and verify selector state.

• Bug Fixes

  • Clear submodel selector via the public OptionList API so error loads leave a single empty option (no private attributes).

^{Written for commit 48ed98f. Summary will update on new commits.}

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Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 3b8cf710-d399-4668-bb8c-83802c331947

📥 Commits

Reviewing files that changed from the base of the PR and between 208cf1f and 48ed98f.

📒 Files selected for processing (9)

• src/pyldraw3_tui/app.py
• src/pyldraw3_tui/screens/catalog.py
• src/pyldraw3_tui/screens/model.py
• src/pyldraw3_tui/screens/setup.py
• src/pyldraw3_tui/widgets/part_detail.py
• src/pyldraw3_tui/widgets/stats_panel.py
• tests/test_pilot_catalog.py
• tests/test_pilot_model.py
• tests/test_snapshots.py

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[codecov]

Codecov Report

❌ Patch coverage is 95.16129% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 87.49%. Comparing base (64161d2) to head (48ed98f).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/pyldraw3_tui/screens/setup.py	0.00%	2 Missing ⚠️
src/pyldraw3_tui/app.py	92.85%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #23      +/-   ##
==========================================
+ Coverage   87.44%   87.49%   +0.05%     
==========================================
  Files          30       30              
  Lines        1465     1463       -2     
==========================================
- Hits         1281     1280       -1     
+ Misses        184      183       -1     

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