# Media

## 1. High-Level Overview

**Purpose:** Upload, batch-upload, list, delete, and download **media** files for missions/waypoints — `01_annotations.md` §7–10 and *Media Browsing*.

**Architectural pattern:** Service + controller; filesystem + DB.

**Upstream dependencies:** Platform (auth, DB, paths for storage roots).

**Downstream consumers:** Annotator UI; Annotations REST (references `MediaId`).

## 2. Internal interfaces

`MediaService`, `MediaController` — JSON create, **multipart** batch with `waypointId`, paged list, file download, delete.

## 3. External API

| Policy | Base |
|--------|------|
| `ANN` | `/media` |

## 4. Data access

`media` table; files on disk under configured video/image roots.

## 5. Modules included

`media-service`.