feat(cli): Add feast projects delete command (closes #5095)

[mailtoboggavarapu-coder]

Summary

Closes #5095

Exposes project deletion through the CLI by adding a new feast projects delete <name> subcommand to the existing projects group.

What's changed

Added project_delete command to sdk/python/feast/cli/projects.py:

Usage: feast projects delete [OPTIONS] NAME

  Delete a project and all its resources from the registry.

Options:
  -y, --yes  Skip confirmation prompt and delete immediately.
  --help     Show this message and exit.

Design notes

• Uses store.registry.delete_project(name, commit=True) via the lazy-init registry property (the abstract method exists in BaseRegistry and is implemented in all concrete registries)
• Adds an interactive confirmation prompt with click.confirm — can be skipped with --yes / -y for scripting
• Catches both FeastObjectNotFoundException and ProjectNotFoundException so the CLI exits cleanly (exit code 1) for either variant raised by concrete registry implementations
• Follows existing CLI patterns in projects.py

Example

# Interactive (prompts for confirmation)
feast projects delete my-project

# Non-interactive
feast projects delete my-project --yes

Checklist

• Added delete command to projects_cmd group
• Confirmation prompt with --yes bypass flag
• Error handling for non-existent projects
• Follows existing CLI patterns in projects.py

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[mailtoboggavarapu-coder]

Thanks for the detailed review, @devin-ai-integration! Fixed both issues in commit 21f7f6a:

1. project_list — utils.py_object_to_proto + broken tag parsing: Updated to match master exactly: uses utils.tags_list_to_dict(tags) for tag filtering and prints tabulated output via tabulate.
2. project_current — simplified incorrectly: Fixed to match master (calls store.get_project(name=None) with try/except and YAML-formatted output).

The only new code is the project_delete command itself.

[mailtoboggavarapu-coder]

Hi team! Friendly ping on this PR — all 18 CI checks are passing and there are no conflicts with the base branch.

This adds a feast projects delete command (closes #5095) with an interactive confirmation prompt and a --yes / -y flag for scripting. Happy to iterate on any feedback!