feat: add RMA (Relationship Memory Architecture) module v0.6.0

Complete RMA system for tracking relationship dynamics in roleplay:
- 10 new modules in src/rma/ (analyzer, memory-store, phase-manager,
  worldbook-sync, float-panel, confirmation-ui, timeline-view, etc.)
- Three-layer model: phases → memories (4 types) → emotional texture
- Post-processing AI analysis via CHARACTER_MESSAGE_RENDERED hook
- Dynamic world book entry toggling/rewriting
- Floating panel UI with 3 states (expanded/half/minimized)
- User confirmation flow (every_turn/important_only/auto modes)
- Settings panel integration with independent API config
- chat_metadata.cola_rma persistence

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

webpack.config.js

@@ -58,6 +58,7 @@ module.exports = (env, argv) => {
                 '@ui': path.resolve(__dirname, 'src/ui'),
                 '@utils': path.resolve(__dirname, 'src/utils'),
                 '@table-filler': path.resolve(__dirname, 'src/table-filler'),
+                '@rma': path.resolve(__dirname, 'src/rma'),
             }
         },
     };