chore: Consolidate GPUI-related skills into two unified skills

.claude/skills/gpui-component-dev/SKILL.md

@@ -0,0 +1,13 @@
+---
+name: gpui-component-dev
+description: Contributing to the gpui-component library: creating new UI components, writing component stories, writing component documentation, and writing GitHub PR descriptions. Use when adding a new component to crates/ui, writing a story in crates/story/src/stories, creating docs in the docs/ folder, or writing a PR description for this project.
+---
+
+## Navigation
+
+| Topic | File | When to load |
+|-------|------|--------------|
+| Creating a new component | [new-component.md](references/new-component.md) | Adding new components to `crates/ui/src` |
+| Writing stories | [story.md](references/story.md) | Creating examples in `crates/story/src/stories` |
+| Writing documentation | [documentation.md](references/documentation.md) | Writing docs in `docs/docs/components/` |
+| Writing PR descriptions | [pr-description.md](references/pr-description.md) | GitHub PR descriptions and breaking changes format |

.claude/skills/generate-component-documentation/SKILL.md → .claude/skills/gpui-component-dev/references/documentation.md

@@ -1,7 +1,3 @@
----
-name: generate-component-documentation
-description: Generate documentation for new components. Use when writing docs, documenting components, or creating component documentation.
----
 
 ## Instructions
 

.claude/skills/new-component/SKILL.md → .claude/skills/gpui-component-dev/references/new-component.md

@@ -1,7 +1,6 @@
----
-name: new-component
-description: Create new GPUI components. Use when building components, writing UI elements, or creating new component implementations.
----
+# Creating New Components
+
+**Contents:** [Instructions](#instructions) · [Component Types](#component-types) · [Implementation Steps](#implementation-steps) · [Common Patterns](#common-patterns)
 
 ## Instructions
 

.claude/skills/github-pull-request-description/SKILL.md → .claude/skills/gpui-component-dev/references/pr-description.md

@@ -1,7 +1,3 @@
----
-name: github-pull-request-description
-description: Write a description to description GitHub Pull Request.
----
 
 ## Description
 

.claude/skills/generate-component-story/SKILL.md → .claude/skills/gpui-component-dev/references/story.md

@@ -1,7 +1,3 @@
----
-name: generate-component-story
-description: Create story examples for components. Use when writing stories, creating examples, or demonstrating component usage.
----
 
 ## Instructions