[Discovery] mcp/time - Timezone Operations

## Project Association

This issue tracks the `mcp/time` MCP server in the core profile.

### Server Details
- **Name**: time
- **Source**: https://github.com/modelcontextprotocol/servers/tree/main/src/time
- **Docker Hub**: https://hub.docker.com/r/mcp/time
- **Category**: global/utility
- **Language**: TypeScript/Node.js

### Transport Status
- **Current**: stdio only (upstream)
- **Implementation**: HTTP-wrapped via supergateway
- **Docker Image**: `time-mcp:http` (custom build)

### Tools Provided
- `get_current_time`: Get current time in a specific timezone
- `convert_time`: Convert time between timezones

### Docker Status
- Official image: `mcp/time`
- Custom wrapper: `time.dockerfile` (extends base with supergateway)
- HADOLint: Not checked

### Notes
- Simple utility server with minimal resource requirements
- Good candidate for Rust rewrite due to simplicity

### Tracking
- [ ] Document timezone support
- [ ] HADOLint compliance check
- [ ] Consider Rust rewrite (high priority - simple server)