feat: implement backlog filtering system

docs: create comprehensive task system consolidation plan

feat: implement Obsidian UI integration with auto-sync

feat: implement Phase 3 - CLI polish and cleanup features

feat: implement mark complete across all systems

feat: Todoist integration via MCP cache

fix: implement strict filtering, critical tasks, and improved UX

feat: Working MVP - Obsidian task recommendations

Scaffold complete Python project structure

Initial project setup for task-manager