Change web platform memory allocator from mimalloc to dlmalloc

.codebuddy/commands/cr.md

@@ -67,8 +67,8 @@ done
 # 拉取最新的 main 分支
 git fetch origin main
 
-# 当前分支相对 origin/main 的完整变更（已提交 + 暂存区 + 工作区的最终结果）
-git diff origin/main
+# 当前分支相对 origin/main 分叉点的完整变更（已提交 + 暂存区 + 工作区的最终结果）
+git diff $(git merge-base origin/main HEAD)
 
 # 查看文件状态（用于识别未跟踪文件）
 git status
@@ -105,8 +105,8 @@ cd /tmp/pr-review-{pr_number}
 # 拉取最新的 main 分支
 git fetch origin main
 
-# 当前分支相对 origin/main 的完整变更
-git diff origin/main
+# 当前分支相对 origin/main 分叉点的完整变更
+git diff $(git merge-base origin/main HEAD)
 
 gh pr view {pr_number} --comments
 ```
@@ -233,3 +233,4 @@ echo "已清理临时审查环境"
 9. **潜在风险**：是否引入回归风险或影响其他模块
 10. **模块架构**：模块职责是否清晰，依赖方向是否合理（如核心模块不应反向依赖平台特定实现）
 11. **整体设计**：结合关联代码评估修改后的整体合理性，必要时建议扩大修改范围
+

.codebuddy/commands/pr.md

@@ -1,163 +0,0 @@
----
-description: 提交 PR - 自动识别新建或追加提交
----
-
-# 提交 PR
-
-严格按以下步骤顺序执行。
-
----
-
-## 前置检查
-
-```bash
-git fetch origin main && \
-CURRENT_BRANCH=$(git branch --show-current) && \
-echo "CURRENT_BRANCH:$CURRENT_BRANCH" && \
-gh pr list --head "$CURRENT_BRANCH" --state open --json number,url && \
-gh api user --jq '.login'
-```
-
-记录：当前分支、是否有开启的 PR、GitHub username（供新建模式使用）。
-
-根据结果选择模式：
-
-| 当前分支 | 已有开启的 PR | 模式 |
-|----------|---------------|------|
-| main | - | **新建模式** |
-| 非 main | 有 | **追加模式** |
-| 非 main | 无 | **新建模式** |
-
----
-
-## 第一步：确定提交范围
-
-运行 `git status --porcelain`：
-- 若有输出：
-  - 若暂存区有内容，且工作区也有内容（含未跟踪文件）：询问用户选择局部提交或全部提交
-  - 否则：全部提交
-- 若无输出：记录为**无本地变更**，跳过第二、三步
-
-**判断方法**：第一列非空格为暂存区有内容；第二列非空格或以 `??` 开头为工作区有内容。
-
-若为**局部提交**，使用 `git diff --cached --name-only` 记录**暂存区文件列表**供后续步骤使用。
-
----
-
-## 第二步：格式化代码
-
-若 `./codeformat.sh` 存在，执行：
-
-```bash
-./codeformat.sh
-```
-
-忽略输出的报错信息，只要运行就会完成格式化。
-
-格式化后根据第一步结果处理暂存区：
-
-| 第一步结果 | 处理方式 |
-|------------|----------|
-| 全部提交 | 执行 `git add .` 将所有变更加入暂存区 |
-| 局部提交 | 仅将第一步记录的文件重新加入暂存区（`git add {文件}`） |
-
----
-
-## 第三步：生成 Commit 信息
-
-```bash
-git diff --cached
-```
-
-根据暂存区变更生成 **Commit 信息**：英语，120 字符内，以句号结尾，侧重描述用户可感知的变化。
-
----
-
-## 第四步：提交并推送
-
-### 追加模式
-
-检查未推送的 commit：
-
-```bash
-git log origin/{当前分支}..HEAD --oneline
-```
-
-| 暂存区 | 未推送 commit | 操作 |
-|--------|---------------|------|
-| 有内容 | - | 提交并推送 |
-| 无内容 | 有 | 仅推送 |
-| 无内容 | 无 | 提示"无新变更需要提交"，流程结束 |
-
-```bash
-# 若暂存区有内容，提交并推送
-git commit -m "{Commit 信息}" && git push
-
-# 若暂存区无内容但有未推送 commit，仅推送
-git push
-```
-
-输出：
-
-```
-**Commit**：{Commit 信息}（若有新提交）
-
-**PR 链接**（已追加提交）：{PR 链接}
-```
-
-### 新建模式
-
-#### 1. 分析完整变更
-
-分析 PR 包含的所有变更：
-
-```bash
-git log origin/main..HEAD --oneline   # 已有 commit
-git diff --cached                      # 本次暂存区变更（若第三步已获取则复用）
-```
-
-若已有 commit 为空且暂存区无内容，提示无变更，终止流程。
-
-#### 2. 生成 PR 信息
-
-根据上述完整变更（已有 commit + 暂存区变更）生成：
-
-- **分支名称**：`feature/{username}_模块名` 或 `bugfix/{username}_模块名`（`{username}` 为前置检查获取的 GitHub 用户 ID 全小写，模块名用下划线连接，最多两个单词）
-- **PR 标题**：英语，120 字符内，以句号结尾，侧重描述用户可感知的变化
-- **PR 描述**：中文，简要说明变更内容和目的
-
-#### 3. 处理分支并提交推送
-
-切换到新分支：
-
-| 当前分支 | 操作 |
-|----------|------|
-| main | `git checkout -b {分支名称}` |
-| 非 main | `git branch -m {分支名称}` |
-
-提交并推送：
-
-```bash
-# 若暂存区有内容，先提交
-git commit -m "{Commit 信息}"
-
-# 推送并创建 PR
-git push -u origin {分支名称}
-gh pr create --title "{PR 标题}" --body "{PR 描述}"
-```
-
-输出：
-
-```
-**PR 标题**：{PR 标题}
-
-**PR 描述**：{PR 描述}
-
-**PR 链接**（新建）：{PR 链接}
-```
-
----
-
-## **!! IMPORTANT - 重要限制**
-
-- **NEVER** 执行 force push

.codebuddy/rules/Code.md

@@ -6,8 +6,8 @@ alwaysApply: true
 ## 编码规范
 
 - 对话用中文，代码和注释用英语
-- 所有说明文件、方案设计文件统一放在 `.codebuddy/designs/` 目录（已加入 .gitignore，不参与提交）
-- 新需求禁止直接编码，先输出详细方案设计文件，穷尽疑问向用户提问，用户明确确认后再按方案编码
+- 永远优先追求答案的正确性而不只是迎合用户的具体要求，特别是当用户的具体要求和正确性有冲突时要及时指出来
+- 新需求的编码任务禁止直接编码，先输出关键接口和伪代码，穷尽所有疑问向用户提问，方案确认后才可编码
 - 复用项目已有功能，保持变更简洁，避免重复代码
 - 重构时审查关联代码合理性，顺带清理冗余，不考虑向后兼容
 - 版权声明里的年份对新增的文件要使用当前年份（如 `Copyright (C) 2026 Tencent`），已有文件保持原年份不变

.codebuddy/skills/pagx-optimize/SKILL.md

@@ -0,0 +1,122 @@
+---
+name: pagx-optimize
+description: Optimize PAGX file structure by removing redundancy, merging shared painters, extracting reusable resources, and improving readability. Use this skill when asked to optimize, simplify, or clean up a PAGX file.
+argument-hint: "[file-path]"
+---
+
+# PAGX File Structure Optimization
+
+This skill provides a systematic checklist for optimizing PAGX file structure. The goals are
+to simplify file structure, reduce file size, and improve rendering performance.
+
+## Fundamental Constraint
+
+**All optimizations must preserve the original design appearance.** This is a hard requirement
+that overrides any individual optimization direction below.
+
+- **Allowed**: Structural transformations that produce identical or near-identical rendering
+  (minor pixel-level differences from node reordering or painter merging are acceptable).
+- **Allowed**: Removing provably invisible content — elements entirely outside the canvas
+  bounds, unused resources, zero-width strokes, fully transparent elements, and other content
+  that contributes nothing to the final rendered image.
+- **Forbidden**: Modifying any parameter that affects design intent — blur radius, spacing,
+  density, colors, alpha, gradient stops, font sizes, shadow offsets, stroke widths, or any
+  other visual attribute — unless the user explicitly approves the change.
+- **Forbidden**: Reducing Repeater density (increasing spacing), lowering blur values, changing
+  opacity, or simplifying geometry in ways that alter the visual result, even if the change
+  seems minor. These are design decisions, not optimization decisions.
+- **When in doubt**: If an optimization might change the rendered appearance, do not apply it.
+  Instead, describe the potential optimization and its visual impact to the user, and ask for
+  explicit approval before proceeding.
+
+---
+
+## Optimization Checklist
+
+### Structure Cleanup (Sections 1-7)
+
+| # | Optimization | When to Apply |
+|---|--------------|---------------|
+| 1 | Move Resources to End | `<Resources>` appears before layer tree |
+| 2 | Remove Empty Elements | Empty `<Layer/>`, empty `<Resources>`, `width="0"` strokes |
+| 3 | Omit Default Values | Attributes explicitly set to spec default |
+| 4 | Simplify Transforms | Translation-only matrix, identity matrix, cascaded translations |
+| 5 | Normalize Numerics | Scientific notation near zero, trailing decimals, short hex |
+| 6 | Remove Unused Resources | Resource `id` has no `@id` reference |
+| 7 | Remove Redundant Wrappers | Group/Layer with no attributes wrapping single element |
+
+> For detailed examples and default value tables, read `references/structure-cleanup.md`.
+
+### Painter Merging (Sections 8-9)
+
+| # | Optimization | When to Apply |
+|---|--------------|---------------|
+| 8 | Merge Geometry Sharing Identical Painters | Multiple geometry elements use same Fill/Stroke |
+| 9 | Merge Painters on Identical Geometry | Same geometry appears twice with different painters |
+
+**Critical caveat (Section 8)**: Different geometry needing different painters must be isolated
+with Groups. This is the most common source of errors.
+
+> For detailed examples and scope isolation patterns, read `references/painter-merging.md`.
+
+### Resource Reuse (Sections 10-14)
+
+| # | Optimization | When to Apply |
+|---|--------------|---------------|
+| 10 | Composition Reuse | 2+ identical layer subtrees differing only in position |
+| 11 | PathData Reuse | Same path data string appears 2+ times |
+| 12 | Color Source Sharing | Identical gradient definitions inline in multiple places |
+| 13 | Replace Path with Primitive | Path describes a Rectangle or Ellipse |
+| 14 | Remove Full-Canvas Clips | Clip mask covers entire canvas |
+
+> For detailed examples and coordinate conversion formulas, read `references/resource-reuse.md`.
+
+### Performance Optimization (Section 15)
+
+**Rendering Cost Model**:
+- **Repeater**: N copies = N× full rendering cost (no GPU instancing)
+- **Nested Repeaters**: Multiplicative (A×B elements)
+- **BlurFilter / DropShadowStyle**: Cost proportional to blur radius
+- **Dashed Stroke under Repeater**: Dash computation per copy
+- **Layer vs Group**: Layer creates extra surface; Group is lighter
+
+**Two categories**:
+1. **Equivalent (auto-apply)**: Downgrade Layer to Group, clip Repeater to canvas bounds
+2. **Suggestions (never auto-apply)**: Reduce density, lower blur, simplify geometry
+
+> For detailed optimization techniques, read `references/performance.md`.
+
+---
+
+## Appendix: Core Concepts
+
+### Painter Scope
+
+Painters (Fill / Stroke) render **all geometry accumulated in the current scope up to that
+painter's position**. Subsequent painters continue to render the same geometry.
+
+### Group Scope Isolation
+
+Group creates an isolated scope. Internal geometry accumulates only within the Group, and
+after the Group ends, its geometry propagates upward to the parent scope.
+
+### Layer vs Group
+
+| Feature | Layer | Group |
+|---------|-------|-------|
+| Geometry propagation | No (boundary) | Yes (to parent) |
+| Styles / Filters / Mask | Supported | Not supported |
+| Composition / BlendMode | Supported | Not supported |
+| Transform | matrix | position/rotation/scale |
+
+**Selection rule**: Use Layer for styles/filters/mask/composition/blendMode. Otherwise prefer Group.
+
+> For DropShadowStyle scope and color source coordinate system, see `references/painter-merging.md`
+> and `references/resource-reuse.md` respectively.
+
+---
+
+## PAGX Specification Quick Reference
+
+For complete attribute defaults, required attributes, and enumeration values extracted from
+the PAGX spec, see `references/pagx-quick-reference.md`.