Generate a presigned URL for temporary access to an object without credentials.

## Usage

```bash
tigris presign <path> [flags]
t3 presign <path> [flags]
```

Paths support the optional `t3://` (or `tigris://`) prefix (e.g. `t3://my-bucket/file.txt` or just `my-bucket/file.txt`).

If no `--access-key` is provided, the key is resolved automatically from your current credentials. OAuth users are prompted to select an access key interactively (or can pass `--access-key` explicitly).

## Flags

| Name | Required | Default | Description |
| --- | --- | --- | --- |
| `--method`, `-m` | No | `get` | HTTP method for the presigned URL. Options: `get`, `put` |
| `--expires-in`, `-e` | No | `3600` | URL expiry time in seconds |
| `--access-key` | No |  | Access key ID to use for signing. If not provided, resolved from credentials or prompted interactively |
| `--select` | No |  | Interactively select an access key (OAuth only) |
| `--format`, `-f` | No | `url` | Output format. Options: `url`, `json` |

## Examples

```bash
# Generate a presigned GET URL (default 1 hour expiry)
tigris presign my-bucket/file.txt

# Generate a presigned PUT URL with 2 hour expiry
tigris presign t3://my-bucket/report.pdf --method put --expires-in 7200

# Output as JSON
tigris presign my-bucket/image.png --format json

# Use a specific access key
tigris presign my-bucket/data.csv --access-key tid_AaBb

# Pipe the URL to clipboard
tigris presign my-bucket/file.txt | pbcopy
```