📦 deps(thirdparty): update snapshots

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+---
+name: markstream-angular
+description: "Integrate the alpha markstream-angular renderer into Angular 20+ applications with standalone components, signals, safe HTML defaults, and optional peer features."
+category: frontend
+risk: critical
+source: https://github.com/Simon-He95/markstream-vue/tree/main/.agents/skills/markstream-angular
+source_repo: Simon-He95/markstream-vue
+source_type: official
+date_added: "2026-07-21"
+author: Simon-He95
+tags: [angular, markdown, streaming, ai-chat, frontend]
+tools: [claude, cursor, gemini, codex]
+license: MIT
+license_source: https://github.com/Simon-He95/markstream-vue/blob/main/license
+---
+
+# Markstream Angular
+
+## Overview
+
+Add Markstream to Angular 20+ while preserving standalone-component patterns, signal-friendly bindings, safe rendering defaults, and explicit optional dependencies. Use `markstream-install` for framework selection; use this skill once Angular is confirmed.
+
+## When to Use
+
+Use for Angular-specific standalone imports, CSS, signals, custom tags or components, streaming state, and optional peers. Do not use below Angular 20 or when the application cannot accept an alpha renderer API.
+
+## Workflow
+
+Before changing dependencies or source files, inspect the existing package manager and project conventions, preview the intended edits, and obtain explicit user approval.
+
+1. Confirm Angular 20+ and record that `markstream-angular` is alpha.
+2. Install the package plus only requested peers. Import `markstream-angular/index.css`; add KaTeX CSS only for math.
+3. Import `MarkstreamAngularComponent` into the standalone component's `imports`.
+4. Start with `[content]` and `[smoothStreaming]="'auto'"`. Use `nodes` plus `final` only when another layer owns the AST.
+5. For live chat use `[fade]="false"` and opt into `[typewriter]="true"`. On completion set `[final]="true"`, disable pacing/cursor, and enable fade only if desired.
+6. Use `[customHtmlTags]` and `[customComponents]` only for trusted tag workflows.
+7. Keep `[htmlPolicy]="'safe'"` and Mermaid strict mode unless a narrowly scoped trusted legacy surface requires otherwise.
+8. Validate with the smallest Angular build, typecheck, or dev command.
+
+## Example
+
+```ts
+import { Component, signal } from '@angular/core'
+import { MarkstreamAngularComponent } from 'markstream-angular'
+import 'markstream-angular/index.css'
+
+@Component({
+  selector: 'app-answer',
+  standalone: true,
+  imports: [MarkstreamAngularComponent],
+  template: `
+    <markstream-angular
+      [content]="markdown()"
+      [final]="done()"
+      [fade]="done()"
+      [typewriter]="!done()"
+      [smoothStreaming]="done() ? false : 'auto'"
+      [htmlPolicy]="'safe'"
+    />
+  `,
+})
+export class AnswerComponent {
+  markdown = signal('# Streaming answer')
+  done = signal(false)
+}
+```
+
+## Limitations
+
+- Requires Angular 20+ and an alpha package.
+- Browser-heavy peers may need bundler or client-boundary work.
+- This skill does not design the host chat architecture or visual system.
+
+## Security & Safety Notes
+
+Review dependency changes before installation. Never broaden HTML or Mermaid trust settings for untrusted model output.