## Description
This PR adds support for `description` and `icon` fields to
`template_version_presets`. These fields will allow displaying richer
information for presets in the UI, improving the user experience when
creating a workspace.
Both fields are optional, non-nullable, and default to empty strings.
## Changes
* Database migration with the addition of `description VARCHAR(128)` and
`icon VARCHAR(256)` columns to the `template_version_presets` table.
* Updated the `CreateWorkspacePageView` in the UI
Note: UI changes will be addressed in a separate PR
## Description
This PR introduces a new `list presets` command to display the presets
associated with a given template.
By default, it displays the presets for the template's active version,
unless a `--template-version` flag is provided.
## Changes
* Added a new `list presets` command under `coder templates presets` to
display presets associated with a template.
* By default, the command lists presets from the template’s active
version.
* Users can override the default behavior by providing the
`--template-version` flag to target a specific version.
```
> coder templates versions presets list --help
USAGE:
coder templates presets list [flags] <template>
List all presets of the specified template. Defaults to the active template version.
OPTIONS:
-O, --org string, $CODER_ORGANIZATION
Select which organization (uuid or name) to use.
-c, --column [name|parameters|default|desired prebuild instances] (default: name,parameters,default,desired prebuild instances)
Columns to display in table output.
-o, --output table|json (default: table)
Output format.
--template-version string
Specify a template version to list presets for. Defaults to the active version.
```
Related PR: https://github.com/coder/coder/pull/18912 - please consider
both PRs together as they’re part of the same workflow
Relates to issue: https://github.com/coder/coder/issues/16594
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added CLI commands to manage and list presets for specific template
versions, supporting tabular and JSON output.
* Introduced a new CLI subcommand group for template version presets,
including detailed help and documentation.
* Added support for displaying and managing the desired number of
prebuild instances for presets in CLI, API, and UI.
* **Documentation**
* Updated and expanded CLI and API documentation to describe new
commands, options, and the desired prebuild instances field in presets.
* Added new help output and reference files for template version presets
commands.
* **Bug Fixes**
* Ensured correct handling and display of the desired prebuild instances
property for presets across CLI, API, and UI.
* **Tests**
* Introduced end-to-end tests for listing template version presets,
covering scenarios with and without presets.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
This pull request fixes a bug in presets and adds tests to ensure it
doesn't happen again.
Due to an oversight in refactoring, we returned extra and incorrect
parameters from other presets in the same template version when calling
`/templateversions/{templateversion}/presets`.
Atif Ali