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Description

## Parent Epic: #195

## Description
Create API endpoints for tenant app installation management.

## Location
api/blueprints/v1/tenant_apps.py

## Endpoints

### Installation Management

POST /api/v1/tenant/apps/{app_id}/install
- Install app to tenant
- Body: {version_id, configuration, auto_update, update_channel}
- Permission: install_apps

DELETE /api/v1/tenant/apps/{app_id}
- Uninstall app from tenant
- Permission: uninstall_apps

GET /api/v1/tenant/apps
- List installed apps
- Query: status, page, page_size
- Permission: view_apps

GET /api/v1/tenant/apps/{app_id}
- Get installation details
- Permission: view_apps

PATCH /api/v1/tenant/apps/{app_id}/config
- Update app configuration
- Body: {configuration}
- Permission: configure_apps

POST /api/v1/tenant/apps/{app_id}/upgrade
- Upgrade to new version
- Body: {version_id}
- Permission: install_apps

POST /api/v1/tenant/apps/{app_id}/enable
- Enable disabled app
- Permission: configure_apps

POST /api/v1/tenant/apps/{app_id}/disable
- Disable app
- Permission: configure_apps

### Secrets Management

POST /api/v1/tenant/apps/{app_id}/secrets
- Set app secret
- Body: {secret_name, secret_value}
- Permission: manage_app_secrets
- Stores in Vault, records reference in secrets_config

DELETE /api/v1/tenant/apps/{app_id}/secrets/{name}
- Delete secret
- Permission: manage_app_secrets

GET /api/v1/tenant/apps/{app_id}/secrets
- List secret names (NOT values)
- Permission: view_apps

### Execution Logs

GET /api/v1/tenant/apps/{app_id}/logs
- Get execution logs for specific app
- Query: status, from_date, to_date, page, page_size
- Permission: view_app_logs

GET /api/v1/apps/logs
- Get all app execution logs
- Permission: view_app_logs

## Tenant Context
- All endpoints require X-Tenant-ID header
- Tenant isolation enforced

## Testing
- Installation lifecycle tests
- Configuration update tests
- Secret management tests
- Log query tests

Due Date (YYYY-MM-DD)

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Edit Issue #203