Description

Add native GraphQL query/mutation support with schema introspection and autocomplete.

Features

GraphQL Request Builder

• Query editor with syntax highlighting
• Variables editor (JSON)
• Operation name selector
• Schema introspection

UI Layout

┌─Request──────────────────────────────┐
│ POST    {{base_url}}/graphql         │
├──────────────────────────────────────┤
│ Query │ Variables │ Headers          │
├──────────────────────────────────────┤
│ query GetUser($id: ID!) {            │
│   user(id: $id) {                    │
│     id                               │
│     name                             │
│     email                            │
│   }                                  │
│ }                                    │
└──────────────────────────────────────┘

Schema Features

• Introspection query on connect
• Type autocomplete
• Field suggestions
• Documentation tooltips

GraphQL-specific

• Query/Mutation/Subscription detection
• Automatic POST with application/json
• Response formatting for GraphQL errors

Acceptance Criteria

• GraphQL query editor
• Variables JSON editor
• Schema introspection
• Syntax highlighting
• GraphQL error formatting
• Operation name support