feat: add 14 additional chart types

[Nebu1eto]

Summary

• Add 14 new chart types bringing the total from 43 to 57: OfPie (PieOfPie, BarOfPie), 3D shape columns (Cone, Pyramid, Cylinder with clustered/stacked/percentStacked variants), Contour (Contour, WireframeContour), and Bubble3D
• XML schema additions: OfPieChart/SerLines structs, shape field on Bar3DChart, bubble_3d on BubbleSeries, of_pie_chart on PlotArea
• Node.js bindings updated with 14 new string mappings in parse_chart_type()
• English and Korean documentation updated with all new chart types

Test plan

• Rust tests: 1253 core tests + 181 XML tests pass (including 17 new chart-specific tests)
• Node.js tests: 269 tests pass (including 15 new chart type tests)
• cargo clippy --workspace passes with no warnings
• cargo fmt --check passes
• pnpm biome check . passes

Generated with Claude Code

[Nebu1eto]

Reviewed the added chart types and XML wiring. I did not find a blocking correctness issue in this pass.

[Nebu1eto]

Detailed review notes:

Good expansion of chart-type coverage and XML schema support. The enum and writer wiring are consistent with existing chart architecture.

What looks good:

• Added types are integrated across core chart builder, XML structs, docs, and TS tests.
• Tests cover major serialization points for new chart families.

Follow-up suggestions:

• Add at least one integration test per new family that reopens the saved workbook and validates the expected chart node exists in chart XML.
• Consider adding negative/validation tests for invalid combinations (for example missing series fields required by bubble variants).
• For of-pie variants, document and test defaults for split behavior/options so consumers know what Excel behavior to expect.