feat: add tech-diagram skill (Mermaid 技术图生成) (#18)

## 概述 / Summary

新增市场技能 **tech-diagram**:把自然语言描述转成品牌一致的技术图(架构图/流程图/时序图/状态机/ER/类图/思维导图),在
DesireCore 对话内复用现有 Mermaid 渲染管线即时渲染为 SVG。

Adds a market skill **tech-diagram** that turns natural-language
descriptions into brand-consistent technical diagrams, rendered inline
as SVG by the existing Mermaid pipeline in the DesireCore chat.

灵感来源 / Inspired by
[fireworks-tech-graph](https://github.com/yizhiyanhua-ai/fireworks-tech-graph)
的三个设计思路:语义词汇表即数据、风格系统化、领域 Pattern 内置——并落到 DesireCore 自己的 3+2 设计令牌与领域模型上。

## 改动 / Changes

- `skills/tech-diagram/SKILL.md` + `SKILL.zh-CN.md`:双语技能正文(强制风格规则 +
语义词汇表 + 输出约定)
- `skills/tech-diagram/references/semantic-vocabulary.md`:概念→Mermaid
形状→3+2 classDef 完整映射
- `skills/tech-diagram/references/templates.md`:4 个 DesireCore
领域模板(Agent 架构 / Delegate 6 模式 / 三层记忆 / 关系图谱)+ 时序图示例
- `builtin-skills.json`:加入 `tech-diagram`
- `manifest.json`:`version` 1.2.1→1.2.2,`stats.totalSkills`
21→22,`lastUpdated`

## 设计要点 / Design

- **风格一致性**:每张图以 `%%{init}%%` 注入品牌主题(覆盖对话全局暗色),用 5 个 `classDef` 绑定
DesireCore 3+2 配色(green/blue/purple + warning orange / error red)。
- **语义优于视觉**:Agent→六边形、系统/记忆→圆角/圆柱、决策→菱形;箭头编码主数据流/记忆写入/异步/层级/上报。
- **领域内置**:直接对照 `delegate.ts` / `conversation-memory.ts` /
`relations/projector.ts` 给出可套用模板。

## 验证 / Verification

-  `scripts/i18n/validate-i18n.py`:无 i18n 问题
-  用 app 同版本 **mermaid 11.15.0**(securityLevel: loose)解析 `templates.md`
全部 5 个图块,全部通过
This commit is contained in:
2026-05-30 23:56:27 +08:00
committed by GitHub
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commit f4dfe8e32f
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# Semantic Vocabulary (语义词汇表)
The full mapping from concept → Mermaid shape → DesireCore 3+2 class. Shape and
color encode meaning, so a reader understands a diagram without a legend.
## The brand header (paste verbatim as the first line of every diagram)
```
%%{init: {'theme':'base','themeVariables':{'primaryColor':'#F0F5FF','primaryBorderColor':'#007AFF','primaryTextColor':'#1d1d1f','lineColor':'#6e6e73','fontFamily':'-apple-system,SF Pro Text,Noto Sans SC,sans-serif'}}}%%
```
## The 5 color classes (the only allowed palette)
```
classDef agent fill:#F6F3FF,stroke:#AF52DE,color:#1d1d1f
classDef system fill:#F0F5FF,stroke:#007AFF,color:#1d1d1f
classDef biz fill:#F0FDF4,stroke:#34C759,color:#1d1d1f
classDef warn fill:#FFFBF0,stroke:#FF9500,color:#1d1d1f
classDef error fill:#FFF0F0,stroke:#FF3B30,color:#1d1d1f
```
`fill` = `cardBgColors`, `stroke` = the 3+2 accent, `color` = `systemColors.label`
(`#1d1d1f`). Source of truth: `app/theme/tokens/index.ts` and
`app/theme/presets/agent-colors.ts` **in the DesireCore application codebase**
(where this skill runs) — these paths are not part of this market repository.
### Class selection rule (mirrors agent-colors.ts)
| Domain | Class | Accent |
|--------|-------|--------|
| System / generic (DesireCore core, infra, LLM) | system | blue `#007AFF` |
| Knowledge / learning (legal, writer, memory) | agent / system | purple `#AF52DE` |
| Business / execution (data, real-estate, code) | biz | green `#34C759` |
| Project management / warning / decision | warn | orange `#FF9500` |
| Error / failure | error | red `#FF3B30` |
Decorative-only colors `yellow #FFCC00` and `teal #5AC8FA` are for background
gradients elsewhere in the product — never use them in diagrams.
## Shape table
| Concept | Mermaid syntax | Class | Note |
|---------|----------------|-------|------|
| Agent / sub-agent | `id{{Name}}` (hexagon) | agent | the signature shape for an autonomous agent |
| DesireCore core / orchestrator | `id(Name)` (rounded) | system | central coordinator |
| LLM / model | `id(⚡ Model)` (rounded + ⚡) | system | ⚡ prefix marks an LLM call |
| Service / tool / skill | `id[Name]` (rect) | biz | a callable capability |
| Business / execution step | `id[Step]` (rect) | biz | a unit of work |
| Memory / store / DB | `id[(Store)]` (cylinder) | system | persistent state |
| User / external actor | `id([User])` (stadium) | biz | the human |
| Decision / branch | `id{Choice?}` (diamond) | warn | a fork in control flow |
| External service | `subgraph Ext [External]` ... `end` + `style Ext stroke-dasharray:4 3` | — | dashed boundary = outside the system |
## Arrow / flow encoding
| Flow type | Edge syntax | Meaning |
|-----------|-------------|---------|
| Primary data flow | `A --> B` | the main path |
| Memory write / persistence | `A -.-> B` | dotted = side-effect write |
| Async event | `A -.->|async| B` | dotted + label |
| Feedback / retry | `B --> A` (back-edge) | loop |
| Hierarchy / containment | `A --o B` | circle edge |
| Hard stop / escalation | `A --x B` | cross edge |
| Co-participation (equal peers) | `A === B` | thick link |
## Diagram-type cheatsheet
| User intent | Mermaid header |
|-------------|----------------|
| Architecture / data flow | `flowchart TD` or `flowchart LR` |
| Sequence / interaction over time | `sequenceDiagram` |
| State machine | `stateDiagram-v2` |
| ER / data model | `erDiagram` |
| Class / type model | `classDiagram` |
| Mind map | `mindmap` |
For `sequenceDiagram`, `classDiagram`, etc. that do not support `classDef`, still
keep the `%%{init}%%` brand header so the theme stays light and on-brand.

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# Built-in Templates (内置模板)
Ready-to-use, brand-styled Mermaid for DesireCore's own architecture patterns.
Adapt the labels to the user's subject; keep the header and `classDef`s intact.
All four are verified to render.
> Note: file paths like `lib/...` and `app/...` cited below refer to the
> **DesireCore application codebase** where this skill runs at runtime — they do
> not exist in this market repository.
## 1. Agent architecture (Agent 架构图)
Mirrors the delegate / skills / memory layout (`lib/agent-service/builtin-tools/delegate.ts`).
```mermaid
%%{init: {'theme':'base','themeVariables':{'primaryColor':'#F0F5FF','primaryBorderColor':'#007AFF','primaryTextColor':'#1d1d1f','lineColor':'#6e6e73','fontFamily':'-apple-system,SF Pro Text,Noto Sans SC,sans-serif'}}}%%
flowchart TD
classDef agent fill:#F6F3FF,stroke:#AF52DE,color:#1d1d1f
classDef system fill:#F0F5FF,stroke:#007AFF,color:#1d1d1f
classDef biz fill:#F0FDF4,stroke:#34C759,color:#1d1d1f
U(["User"]):::biz
Core("DesireCore Core"):::system
A1{{"Legal Agent"}}:::agent
A2{{"Data Agent"}}:::agent
Skills["Skills / MCP Tools"]:::biz
Mem[("Conversation Memory")]:::system
U --> Core
Core --> A1
Core --> A2
A1 --> Skills
A2 --> Skills
A1 -.-> Mem
A2 -.-> Mem
```
## 2. Delegate 6 modes (Delegate 六种模式)
The unified delegate tool and its six execution modes.
```mermaid
%%{init: {'theme':'base','themeVariables':{'primaryColor':'#F0F5FF','primaryBorderColor':'#007AFF','primaryTextColor':'#1d1d1f','lineColor':'#6e6e73','fontFamily':'-apple-system,SF Pro Text,Noto Sans SC,sans-serif'}}}%%
flowchart LR
classDef system fill:#F0F5FF,stroke:#007AFF,color:#1d1d1f
classDef biz fill:#F0FDF4,stroke:#34C759,color:#1d1d1f
D("Delegate Tool"):::system
D --> S["sync: block & await"]:::biz
D --> AS["async: fire & report back"]:::biz
D --> W["worker: ephemeral SubAgent"]:::biz
D --> F["fan-out: parallel / sequential"]:::biz
D --> H["handoff: hand session to user"]:::biz
D --> V["via-messaging: fallback wait"]:::biz
```
## 3. Three-tier conversation memory (三层对话记忆)
active → recent (L0/L1) → archive (L2); writes are dotted
(`lib/schemas/agent-service/conversation-memory.ts`).
```mermaid
%%{init: {'theme':'base','themeVariables':{'primaryColor':'#F0F5FF','primaryBorderColor':'#007AFF','primaryTextColor':'#1d1d1f','lineColor':'#6e6e73','fontFamily':'-apple-system,SF Pro Text,Noto Sans SC,sans-serif'}}}%%
flowchart LR
classDef system fill:#F0F5FF,stroke:#007AFF,color:#1d1d1f
classDef warn fill:#FFFBF0,stroke:#FF9500,color:#1d1d1f
New(["New Message"]):::warn
Active[("active: ongoing matters")]:::system
Recent[("recent: L0 / L1 summaries")]:::system
Archive[("archive: L2 full log")]:::system
New --> Active
Active -.->|compact| Recent
Recent -.->|archive after 180d| Archive
```
## 4. Relation graph (关系图谱6 种边)
The six edge types projected by `lib/agent-service/relations/projector.ts`, each
drawn with a distinct edge style. Edge weight decays over time (30-day half-life).
```mermaid
%%{init: {'theme':'base','themeVariables':{'primaryColor':'#F0F5FF','primaryBorderColor':'#007AFF','primaryTextColor':'#1d1d1f','lineColor':'#6e6e73','fontFamily':'-apple-system,SF Pro Text,Noto Sans SC,sans-serif'}}}%%
flowchart TD
classDef agent fill:#F6F3FF,stroke:#AF52DE,color:#1d1d1f
classDef biz fill:#F0FDF4,stroke:#34C759,color:#1d1d1f
A1{{"Agent A"}}:::agent
A2{{"Agent B"}}:::agent
A3{{"Agent C"}}:::agent
U(["User"]):::biz
A1 -->|delegate| A2
A1 -.->|mention| A3
A2 ===|co_task| A3
A2 --o|hierarchy| A1
A3 -->|seek_help| A1
A1 --x|escalation| U
```
## Other diagram types
For sequence / state / ER / class diagrams, keep the same `%%{init}%%` header for
a consistent light theme. Example sequence diagram:
```mermaid
%%{init: {'theme':'base','themeVariables':{'primaryColor':'#F0F5FF','primaryBorderColor':'#007AFF','primaryTextColor':'#1d1d1f','lineColor':'#6e6e73','fontFamily':'-apple-system,SF Pro Text,Noto Sans SC,sans-serif'}}}%%
sequenceDiagram
actor U as User
participant C as DesireCore Core
participant A as Sub-Agent
participant M as Memory
U->>C: request
C->>A: delegate (sync)
A->>M: write fact
A-->>C: result
C-->>U: reply
```