Feat/mainnet profile spawning

[Jharmony]

This PR enables Bazar to spawn and interact with AO profiles on mainnet (HyperBEAM) instead of legacy testnet infrastructure. The implementation uses a minimal, focused approach that leverages existing PermawebLibs infrastructure - by configuring the AO connection for mainnet at the provider level, all operations automatically use mainnet.

Changes

Core Configuration

• Added AO_NODE configuration with mainnet HyperBEAM settings (gateway URL, scheduler, authority)
• Made AOCONFIG dynamic to support mainnet/legacy mode switching
• Updated PermawebProvider to create mainnet-configured AO connection and pass it to PermawebLibs

Mode Switching

• Added support for VITE_AO environment variable to switch between mainnet and legacy modes
• Updated aoconnect.ts helper to respect mode passed in arguments
• Added mode switching in vite.config.ts for build-time constants

Build Configuration

• Updated productionAddresses to use mainnet MODULE and SCHEDULER values
• Fixed @permaweb/ucm alias to use correct package path (index.esm.js instead of browser.js)
• Updated profile error message for clarity