Add first-class edge files in graph/edges/ with bidirectional frontmatter
refs, hybrid Ollama/OpenAI embedding providers with fallback chain, and
native MCP server (18 tools) for direct Claude Code integration.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Changed zero-access usage_factor from 0.5 to 1.0 in calculate_decay_score().
Previously, a freshly stored solution (importance=0.7, weight=1.2) scored
0.42 (Fading); now scores 0.84 (Active) as intended.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>