Tools
GET /api/sdk/tools
POST /api/sdk/tools/call
Resources
GET /api/sdk/resources
POST /api/sdk/resources/read
Prompts
GET /api/sdk/prompts
POST /api/sdk/prompts/get
Workflows
GET /api/sdk/workflows
POST /api/sdk/workflows/execute
App resolve
GET /api/apps/{app}/resolve returns app metadata and server info for SDK initialization.