feat: adapt to neroued_vectorizer v0.2.0 with V1/V2 pipeline selection

[Neroued]

Summary

• Adapt to neroued_vectorizer v0.2.0 which introduces a V2 vectorization pipeline (stacking model + depth ordering) alongside the existing V1 (boundary-graph + cutout).
• Add pipeline_mode parameter throughout the stack (API, frontend types, normalization, UI) with V2 as the new default.
• Frontend dynamically hides V1-only parameters when V2 is selected, showing a cleaner interface with only shared parameters.
• Expose previously missing V1 parameters (slic_compactness, enable_subpixel_refine, subpixel_max_displacement) in the advanced settings panel.

Changes

Backend (server_facade.cpp)

• VectorizeDefaults(): returns pipeline_mode: "v2" and newly exposed fields
• BuildVectorizeConfig(): parses pipeline_mode string to enum, parses new fields, adds range validation
• Debug logging includes pipeline_mode

Frontend

• types.ts: PipelineMode type alias, 4 new fields on VectorizeParams
• normalizeVectorizeParams.ts: defaults to pipeline_mode: 'v2', normalization for new fields
• VectorizePanel.vue: radio group for V1/V2 selection, v-if="isV1" on V1-only sections (smoothness, segmentation panel, thin line radius, detail level)
• zh-CN.ts / en.ts: i18n keys for pipeline mode and new parameters

Docs

• docs/development.md: vectorize parameter table restructured with "Applicable" column (V1/V2/V1+V2)

Test plan

• Verify GET /api/v1/vectorize/defaults returns pipeline_mode: "v2" and all new fields
• Submit vectorize task with pipeline_mode: "v1" — confirm V1 pipeline is used
• Submit vectorize task with pipeline_mode: "v2" (or omit) — confirm V2 pipeline is used
• Frontend: select V2 — verify V1-only params (smoothness, segmentation section, thin line, detail level) are hidden
• Frontend: select V1 — verify all params including new ones (slic_compactness, subpixel refine) are visible
• Frontend: reset params button works correctly for both modes
• Verify i18n works for both zh-CN and en locales

Made with Cursor

[Neroued]

Code Review — PR #44: feat: adapt to neroued_vectorizer v0.2.0 with V1/V2 pipeline selection

web/frontend/src/domain/vectorize/normalizeVectorizeParams.ts

• Warning: L9, L20 — 本地 fallback 默认值仍然是旧版本的 min_region_area=10、max_merge_color_dist=150，而这次 PR 把 v0.2.0 / V2 的默认值切到了 50 和 200。结合 VectorizePanel.vue 里提交时仍以 defaultVectorizeParams 作为 normalize fallback（L91-L92），一旦 /api/v1/vectorize/defaults 请求失败，就会把过期默认值发给后端，导致“默认 V2 参数”和文档描述不一致。建议把本地默认值同步到新后端默认值，或提交时改用 mergedDefaults 作为 fallback，避免服务端 defaults 不可用时退回旧参数。

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Reviewed at: 97c2dbb | Files: 8 | Findings: 0 critical, 1 warning, 0 info