chore: bump version to 8.0.0

Introducing Modes – modes are used for context-specific observation capture and processing, supporting different domains (coding, email investigation, etc.) and 30+ languages. Modes work through inheritance-based JSON configurations that customize observation types, prompts, and SDK behavior, enabling multilingual memory with locale-specific output while maintaining consistent structure.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

plugin/.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "claude-mem",
-  "version": "7.4.5",
+  "version": "8.0.0",
   "description": "Persistent memory system for Claude Code - seamlessly preserve context across sessions",
   "author": {
     "name": "Alex Newman"