revert: remove Luminous-specific brain content and restore empty public brain

add voice agent system prompt and update-voice-prompt skill

extract 33 threshold outline insights from Google Drive into knowledge base

add project-manager skill for lightweight project tracking

upgrade nano-banana to Gemini 3.1 Flash Image Preview (Nano Banana 2)

add email processing, Google Workspace integration, and Luminous core docs

seed Luminous Brain with foundational knowledge graph

add seed-brain skill for bootstrapping knowledge graphs from foundational documents

improve start-here: add plugin install commands and new user auto-trigger

sync: update skills, agents, and core files from internal

Merge pull request #4 from Abilityai/update/v02-25-recent-changes

Major update: v03.26 - SYNAPSE memory, dialectic engine, autonomous research

Expand What's New article with playbooks, Trinity, and architecture details

Add What's New in v02.25 article

Major update: v02.25 - Skills architecture, FAISS search, remove Smart Connections