# Task ID: 73
# Title: Implement Custom Model ID Support for Ollama/OpenRouter
# Status: in-progress
# Dependencies: None
# Priority: medium
# Description: Allow users to specify custom model IDs for Ollama and OpenRouter providers via CLI flag and interactive setup, with appropriate validation and warnings.
# Details:
**CLI (`task-master models --set-<role> <id> --custom`):**
- Modify `scripts/modules/task-manager/models.js`: `setModel` function.
- Check internal `available_models.json` first.
- If not found and `--custom` is provided:
    - Fetch `https://openrouter.ai/api/v1/models`. (Need to add `https` import).
    - If ID found in OpenRouter list: Set `provider: 'openrouter'`, `modelId: <id>`. Warn user about lack of official validation.
    - If ID not found in OpenRouter: Assume Ollama. Set `provider: 'ollama'`, `modelId: <id>`. Warn user strongly (model must be pulled, compatibility not guaranteed).
- If not found and `--custom` is *not* provided: Fail with error message guiding user to use `--custom`.

**Interactive Setup (`task-master models --setup`):**
- Modify `scripts/modules/commands.js`: `runInteractiveSetup` function.
- Add options to `inquirer` choices for each role: `OpenRouter (Enter Custom ID)` and `Ollama (Enter Custom ID)`.
- If `__CUSTOM_OPENROUTER__` selected:
    - Prompt for custom ID.
    - Fetch OpenRouter list and validate ID exists. Fail setup for that role if not found.
    - Update config and show warning if found.
- If `__CUSTOM_OLLAMA__` selected:
    - Prompt for custom ID.
    - Update config directly (no live validation).
    - Show strong Ollama warning.

# Test Strategy:
**Unit Tests:**
- Test `setModel` logic for internal models, custom OpenRouter (valid/invalid), custom Ollama, missing `--custom` flag.
- Test `runInteractiveSetup` for new custom options flow, including OpenRouter validation success/failure.

**Integration Tests:**
- Test the `task-master models` command with `--custom` flag variations.
- Test the `task-master models --setup` interactive flow for custom options.

**Manual Testing:**
- Run `task-master models --setup` and select custom options.
- Run `task-master models --set-main <valid_openrouter_id> --custom`. Verify config and warning.
- Run `task-master models --set-main <invalid_openrouter_id> --custom`. Verify error.
- Run `task-master models --set-main <ollama_model_id> --custom`. Verify config and warning.
- Run `task-master models --set-main <custom_id>` (without `--custom`). Verify error.
- Check `getModelConfiguration` output reflects custom models correctly.