chore: remove vibe-coding artifacts from tracking, sync notes and obsidian config

- Untrack .claude/launch.json (Claude Code config)
- Add .claude/, .mcp.json, CLAUDE.md, and AI-generated CSVs to .gitignore
- Add _notes/ vault (architecture, API, tasks, bugs, infra docs)
- Add .obsidian/ plugin/vault config (workspace state excluded)
- Sync CHANGELOG.md

_notes/01 - Architecture/Overview.md

@@ -0,0 +1,66 @@
+# Architecture Overview
+
+## Eventify Ecosystem
+
+Eventify is a multi-project event management platform with **4 frontends**, a **Django backend**, and **Docker-based infrastructure** on AWS EC2.
+
+```
+┌─────────────────────────────────────────────────────┐
+│                    Users / Partners                  │
+├──────────┬──────────┬───────────┬───────────────────┤
+│ app.*    │ admin.*  │ partner.* │ Mobile App        │
+│ React    │ React    │ Next.js   │ Flutter           │
+│ Vite+TS  │ Shadcn   │ Prisma    │ iOS/Android/Web   │
+├──────────┴──────────┴───────────┴───────────────────┤
+│              Django REST API (Python)                │
+│     uat.eventifyplus.com / prod.eventifyplus.com    │
+├─────────────────────────────────────────────────────┤
+│           AWS EC2 · Docker · eventify-net           │
+│           Database · Server Monitor                 │
+└─────────────────────────────────────────────────────┘
+```
+
+## Projects at a Glance
+
+| Project | Domain | Stack | Local Path |
+|---------|--------|-------|------------|
+| Web App | `app.eventifyplus.com` | React 18 + Vite + TS + Tailwind | `mvnew.eventifyplus.com new/` |
+| Admin | `admin.eventifyplus.com` | React 18 + Vite + Shadcn/UI | `eventify-command-center/` |
+| Partner | `partner.eventifyplus.com` | Next.js 16 + Prisma + Tailwind | `eventify-partner/` |
+| Mobile | iOS / Android / Desktop | Flutter + Dart + Provider | `Eventify-frontend/` |
+| Backend | `uat.eventifyplus.com/api/` | Django 4.2+ (Python) | `eventify_backend/` |
+| Monitor | `status.eventifyplus.com` | Node.js + Docker | `eventify-server-monitor/` |
+
+All local projects live under `/Users/bshtechnologies/Documents/`.
+
+## Backend Modules
+
+| Module | Purpose |
+|--------|---------|
+| `accounts` | Users & auth |
+| `events` | Event CRUD, types, images |
+| `bookings` | Reservations |
+| `reviews` | User reviews |
+| `ledger` | Financial ledger |
+| `banking_operations` | Payments |
+| `gamification` | EP, RP, achievements, leaderboard |
+| `eventify_logger` | Logging |
+
+## Flutter App Architecture (Mobile)
+
+Feature-first modular structure:
+```
+lib/
+├── core/          # API, auth, storage, utils, constants, theme
+├── features/      # auth, events, gamification, reviews
+├── screens/       # Mobile + desktop screen variants
+└── widgets/       # Reusable UI components
+```
+
+State Management: Provider (`^6.1.2`) — see [[State Management]]
+
+## Detailed Notes
+
+- **Per-project details:** [[09 - Projects/App - Web Frontend]] · [[09 - Projects/Admin - Command Center]] · [[09 - Projects/Partner Portal]] · [[09 - Projects/Mobile - Flutter]] · [[09 - Projects/Backend - Django]]
+- **Infrastructure:** [[10 - Infrastructure/Server & Docker]] · [[10 - Infrastructure/Server Monitor]]
+- **Flutter specifics:** [[Folder Structure]] · [[State Management]]