#19145 test: map the CodeRouter guide pane to its mobile wire kind

Main is red (#19109): MobileSurfaceKindMappingTests.everyPanelTypeMapsToItsCanonicalWireKind fails with canonicalKinds.count 16 != PanelType.allCases.count 17.

The CodeRouter guide pane (5f98c9800a43, @azooz2003-bit) added PanelType.coderouterGuide and its coderouterGuide wire kind in both mapping functions, but the test's canonical table wasn't updated. This adds the entry; product code is unchanged.

🤖 Generated with Claude Code

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Summary by cubic

Fixes the failing MobileSurfaceKindMappingTests.everyPanelTypeMapsToItsCanonicalWireKind test by registering the coderouterGuide pane's canonical wire kind. The CodeRouter guide pane added PanelType.coderouterGuide but the test table wasn't updated, so the test failed on main; product code is unchanged.

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[!NOTE]
Low Risk
Test-only update to a canonical mapping table; no runtime behavior changes.

Overview
Fixes a failing MobileSurfaceKindMappingTests case after PanelType.coderouterGuide was introduced: the test’s canonicalKinds dictionary now includes .coderouterGuide: "coderouterGuide", so its count matches PanelType.allCases and the test can assert that mobileSurfaceKind and Workspace.surfaceKind still emit the expected wire string.

No production mapping changes—only the test’s canonical vocabulary table is brought in line with the new panel type.

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Summary by CodeRabbit

• Tests
  • Added coverage for the coderouterGuide panel-to-wire-kind mapping.