Add Submersion system (Technomancer equivalent of initiation) with:
- Submersion grade tracking with karma cost calculation (13 + 3 x grade)
- Echo system with 10 predefined Echoes and custom Echo support
- Max Resonance increases with submersion grade (6 + grade)
- Effective Resonance calculation accounting for essence loss
- SubmersionPanel UI integrated into Magic tab
- Schema migration v0.12 -> v0.13 for backward compatibility
- Full serialization support for all new model classes
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
claude-bot