feat: optimize canvas load and save using lazy loading and delta upserts

feat: include daily AI generation count in user response DTO

Implement custom templates and subscription tiers backend changes

Optimize prompts for recursive roadmap generation and add goal templates

feat: add chat history support to AI strategist assist

gemini integration

feat: Upgrade AutoLayoutEngine to support rich node generation (color, status, progress, tags, subgoals, etc.)

feat: implement QuestSchema DTO, AutoLayoutEngine and AgentCanvasController for LLM Agent Skill integration

fix: refactor Edge.Condition to string for precise handle-based connection persistence

Extend TaskNode with visual and data fields to support images, drawing and custom text

feat(habits): support custom checked date in backend DTO, repository, and service

fix

init