7 option to select model

[johnseth97]

No description provided.

[Copilot]

Pull Request Overview

This PR adds support for selecting a specific AI model via the -m flag, refactors buffer creation/reuse, and updates tests, documentation, and CI workflows to align with these changes.

• Introduce model option in config and include -m <model> in spawned command
• Refactor buffer setup into create_clean_buf with reuse logic
• Update tests for table-based cmd and add new model-passing spec
• Refresh README and adjust Makefile/CI configs

Reviewed Changes

Copilot reviewed 5 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/specs/codex_spec.lua	Updated cmd usage, added model test, remove debug code
makefile	Point test runner at tests/specs/ directory
lua/codex/init.lua	Add model config, buffer creation helper, inject flag
README.md	Document new model option and keybinding changes
.github/workflows/ci.yml	Remove extra branch, add semantic-release job

Comments suppressed due to low confidence (2)

tests/specs/codex_spec.lua:50

• This print statement and the manual buffer-modified reset appear to be leftover debug code—consider removing them to keep tests clean and avoid noisy output.

    print('🔍 buffer modified before toggle:', vim.api.nvim_buf_get_option(buf, 'modified'))

tests/specs/codex_spec.lua:62

• The syntax here places '1000' outside the cmd table; use cmd = { 'sleep', '1000' } to pass both elements correctly as a list.

    require('codex').setup { cmd = 'sleep', '1000' }