Add initial project structure, including README, CONTRIBUTING, and documentation files

- Created .gitignore to exclude unnecessary files
- Added README.md with project description and core features
- Introduced CONTRIBUTING.md for development guidelines
- Established documentation files for architecture, quality requirements, and technical risks

docs/03_context_and_scope.md

@@ -0,0 +1,33 @@
+# Context and Scope
+
+## Business Context
+
+```txt
+┌─────────────────┐       Discord API         ┌──────────────────┐
+│  Discord Users  │◄───────────────────────►  │   omo-bot        │
+│  (Community)    │   slash cmds, embeds      │   (Discord Bot)  │
+└─────────────────┘                           └────────┬─────────┘
+                                                       │
+                                         OAuth2 + REST │
+                                                       ▼
+                                           ┌────────────────┐
+                                           │ openmicodyssey │
+                                           │ .com (Web App) │
+                                           └────────────────┘
+```
+
+## Technical Context
+
+| Partner            | Protocol                   | Data                                    | Description                          |
+| ------------------ | -------------------------- | --------------------------------------- | ------------------------------------ |
+| Discord API        | WebSocket (Gateway) + REST | Messages, roles, events, voice states   | Bot core communication               |
+| YouTube Data API   | HTTPS (REST + polling)     | Video metadata, thumbnails              | Auto-post new uploads to #screenings |
+| Instagram API      | HTTPS (REST + polling)     | Image URLs, captions                    | Auto-post to #polaroids-from-the-van |
+| TikTok API         | HTTPS (REST + polling)     | Video metadata                          | Auto-post to #outtakes               |
+| openmicodyssey.com | HTTPS (OAuth2 + REST)      | User profiles, mileage data, map routes | Web session sync                     |
+
+## Scope
+
+**In scope:** Discord bot commands, reaction-role management, event queue, content webhook syndication, mileage tracking, admin dashboard API.
+
+**Out of scope:** The main `openmicodyssey.com` website frontend, native mobile apps, third-party content moderation.