shell: fish functions -> ~/.local/bin executables + bash/zsh ports; manage ~/.agents

- 16 cross-shell utilities converted to sh/bash chezmoi executables:
  ai c2p cp-appid extract_agents fab gdc gh-sonr-org-migrate ghg-clone
  ghn gho git-summary launch_omp_livediff_overlay lc-elir mdcp mdp pj
  (ghg-clone not named ghg: unrelated cargo binary owns that name)
- cwd/history helpers stay per-shell: yy c cd clip-last + ghg/ghn/gho
  cd-wrappers in bash/functions/ and zsh/functions/, loaded by rc files
- fish keeps only shell-state functions; converted ones now hit PATH
- cp-appid ignore gating moved to .local/bin path
- dot_agents/skills: 82 skills materialized from dotstate storage so
  dot_claude skill symlinks resolve on fresh bootstrap; dotstate
  profile/symlinks.json released .agents/skills .bashrc .zshrc

dot_agents/skills/fumadocs-mdx-structure/SKILL.md

@@ -0,0 +1,136 @@
+---
+name: fumadocs-mdx-structure
+description: Create MDX documentation files with proper frontmatter, imports, and component integration. Apply when creating or updating Fumadocs documentation pages in content/docs/.
+---
+
+## Fumadocs MDX Structure
+
+Create well-structured MDX documentation files for 8-bit components following the established patterns.
+
+### Frontmatter Pattern
+
+```mdx
+---
+title: Component Name
+description: Brief description of the 8-bit component.
+---
+```
+
+### Import Pattern
+
+All documentation files require these imports:
+
+```mdx
+import { ComponentName } from "@/components/ui/8bit/component-name";
+import CopyCommandButton from "@/components/copy-command-button";
+import InstallationCommands from "@/components/installation-commands";
+import ComponentPreview from "@/components/component-preview";
+```
+
+### Copy Command Button
+
+Place immediately after frontmatter:
+
+```mdx
+<div className="flex flex-col md:flex-row items-center justify-end gap-2 mb-2">
+  <CopyCommandButton
+    copyCommand="pnpm dlx shadcn@latest add @8bitcn/component-name"
+    command="pnpm dlx shadcn@latest add @8bitcn/component-name"
+  />
+</div>
+```
+
+### Component Preview
+
+Wrap component examples:
+
+```mdx
+<ComponentPreview title="8-bit ComponentName component" name="component-name">
+  <ComponentName>Example</ComponentName>
+</ComponentPreview>
+```
+
+### Installation Section
+
+```mdx
+## Installation
+
+---
+
+<InstallationCommands packageName="component-name" />
+```
+
+### Usage Section
+
+```mdx
+## Usage
+
+---
+
+```tsx
+import { ComponentName } from "@/components/ui/8bit/component-name"
+```
+
+```tsx
+<ComponentName variant="outline">Example</ComponentName>
+```
+```
+
+### Complete Example
+
+```mdx
+---
+title: Button
+description: Displays an 8-bit button component.
+---
+
+import { Button } from "@/components/ui/8bit/button";
+import CopyCommandButton from "@/components/copy-command-button";
+import InstallationCommands from "@/components/installation-commands";
+import ComponentPreview from "@/components/component-preview";
+
+<div className="flex flex-col md:flex-row items-center justify-end gap-2 mb-2">
+  <CopyCommandButton
+    copyCommand="pnpm dlx shadcn@latest add @8bitcn/button"
+    command="pnpm dlx shadcn@latest add @8bitcn/button"
+  />
+</div>
+
+<ComponentPreview title="8-bit button component" name="button">
+  <Button>Button</Button>
+</ComponentPreview>
+
+## Installation
+
+---
+
+<InstallationCommands packageName="button" />
+
+## Usage
+
+---
+
+```tsx
+import { Button } from "@/components/ui/8bit/button"
+```
+
+```tsx
+<Button variant="outline">Button</Button>
+```
+```
+
+### Key Principles
+
+1. **Frontmatter required** - title and description are mandatory
+2. **Import order** - Component → utilities → UI components
+3. **Copy button** - Place before ComponentPreview
+4. **ComponentPreview** - Use for all component examples
+5. **Code blocks** - Use ```tsx for TypeScript examples
+6. **Section separators** - Use `---` after headings
+7. **8-bit imports** - Use `@/components/ui/8bit/` path
+
+### File Location
+
+Place documentation files in:
+- `content/docs/components/component-name.mdx` for components
+- `content/docs/blocks/category/block-name.mdx` for blocks