Usage tier-based function source limits

Function sources can now be limited based on subscription tier, providing enhanced control over resource utilization. This feature streamlines operations for users under different plans.

Features

• Add logos to control panel for enhanced visual engagement and brand recognition
• Introduce metadata tags for tools and resources for better resource management
• Limit number of function sources based on usage tier for improved resource control
• Add full support for building Gram Functions using the SDK
• Track runner memory and CPU usage per function call for improved visibility

Fixes

• Require Node.js v22.18.0+ for functions SDK to ensure compatibility
• Add missing ‘zx’ dependency to TypeScript SDK package.json
• Fix functions onboarding flow to enhance user experience
• Preserve Content-Length header when uploading functions for correct handling
• Tolerate duplicates with gram stage command for more graceful handling