chore(project): reset backlog with 2.0 refactoring roadmap

[rmarsigli]

Replace the 7 existing tactical bug-fix tasks with a complete 15-task roadmap for the AIPIM 2.0 architecture redesign.

MVP (TASK-001–007):

• JSONL event system (append-only source of truth)
• SQLite derived state layer (queryable, gitignored)
• Migration script (1.x → 2.0 without breaking changes)
• MCP server (Hono, aipim mcp start, auto-migrate on boot)
• MCP read tools (get_project_context, get_next_task, etc.)
• MCP write tools (complete_task, add_comment, log_decision, etc.)
• Fix task next priority ordering (alphabetical → real priority)

Team support (TASK-008–009):

• config.toml with team members and identity resolution
• Git union merge driver for conflict-free collaboration

UI (TASK-010–015):

• REST API + SSE for real-time Svelte UI
• Svelte 5 + Vite project setup
• Kanban board with drag-and-drop
• Task detail panel with inline markdown editing
• Event timeline view
• Monorepo split (only when packages justify it)

https://claude.ai/code/session_01JAW5gduNHaqKdNn7yxEZbz

Description

Please include a summary of the change and which issue is fixed.

Fixes # (issue)

Type of change

• 🐛 Bug fix (non-breaking change which fixes an issue)
• 🚀 New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📝 Documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes (npm run test)
• My changes pass the type checker (npm run type-check)