Add browse/welcome.html — poetic ontological introduction

- The Nature of Your Being — standalone page
- Seven ontological awakening steps (BFO grounded)
- Genome visualization with layered ontology strands
- Three Noble Truths (Identity, Typed Relationships, Evidence)
- Hybrid kernel composition diagram
- Dark/light theme toggle
- Intersection Observer scroll animations
- Links to protocol, browse tool, GitHub

Author: styk-tv