[AZ-178] Implement streaming video detection endpoint

- Added `/detect/video` endpoint for true streaming video detection, allowing inference to start as upload bytes arrive.
- Introduced `run_detect_video_stream` method in the inference module to handle video processing from a file-like object.
- Updated media hashing to include a new function for computing hashes directly from files with minimal I/O.
- Enhanced documentation to reflect changes in video processing and API behavior.

Made-with: Cursor

_docs/04_deploy/deploy_scripts.md

@@ -0,0 +1,65 @@
+# Deployment Scripts
+
+All scripts are in `scripts/` at the project root. Each script is POSIX-compatible (`bash` with `set -euo pipefail`), sources `.env` from the project root, and supports `--help`.
+
+## Script Reference
+
+| Script | Purpose | Key Env Vars |
+|--------|---------|-------------|
+| `deploy.sh` | Orchestrates full deployment | REGISTRY, IMAGE_TAG, DEPLOY_HOST, DEPLOY_USER |
+| `pull-images.sh` | Pulls Docker images from registry | REGISTRY, IMAGE_TAG |
+| `start-services.sh` | Starts the detections container | REGISTRY, IMAGE_TAG, LOADER_URL, ANNOTATIONS_URL |
+| `stop-services.sh` | Gracefully stops and removes container | — |
+| `health-check.sh` | Verifies `/health` endpoint | HEALTH_CHECK_HOST, HEALTH_CHECK_PORT |
+
+## Usage
+
+### Full Deployment
+
+```bash
+REGISTRY=registry.example.com IMAGE_TAG=a1b2c3d bash scripts/deploy.sh
+```
+
+### Remote Deployment (via SSH)
+
+```bash
+REGISTRY=registry.example.com \
+IMAGE_TAG=a1b2c3d \
+DEPLOY_HOST=production-server.example.com \
+DEPLOY_USER=deploy \
+bash scripts/deploy.sh
+```
+
+### Rollback
+
+```bash
+bash scripts/deploy.sh --rollback
+```
+
+Redeploys the previous image tag (saved in `.deploy-previous-tag` by `stop-services.sh`).
+
+### Local Development
+
+```bash
+docker compose -f docker-compose.yml up
+```
+
+Or using the e2e compose for testing:
+
+```bash
+cd e2e && COMPOSE_PROFILES=cpu docker compose -f docker-compose.test.yml up --build
+```
+
+## Deployment Flow
+
+```
+deploy.sh
+  ├── pull-images.sh    → docker pull
+  ├── stop-services.sh  → docker stop (30s grace) + save previous tag
+  ├── start-services.sh → docker run
+  └── health-check.sh   → curl /health (10 retries, 3s interval)
+```
+
+## Environment Variables
+
+All scripts source `.env` from the project root if it exists. Variables can also be passed directly via the environment. See `.env.example` for the full list.