feat: implement runnable prompts auto-discovery

[danielmeppiel]

• Add automatic prompt discovery for installed prompts
• Support running prompts without manual apm.yml configuration
• Implement 3-tier execution priority: explicit scripts > auto-discovery > error
• Add runtime detection (copilot > codex) with helpful error messages
• Generate proper runtime commands with defaults (Copilot CLI, Codex CLI)
• Add comprehensive unit tests (16 tests) and integration tests (8 tests)
• Fix STATUS_SYMBOLS missing keys (default, eyes, folder, cogs)

Prompts can now be run immediately after installation with 'apm run ' without requiring scripts to be defined in apm.yml. Explicit scripts still take precedence for granular control and advanced use cases.

[Copilot]

Pull Request Overview

This PR implements runnable prompts, a feature that allows auto-discovery and immediate execution of installed prompt files without requiring manual script configuration in apm.yml. The implementation follows a convention-over-configuration approach with fallback discovery.

Key changes:

• Auto-discovery mechanism for prompt files across local and dependency directories
• Runtime detection with priority order (copilot > codex)
• Command generation with runtime-specific defaults
• Backwards compatibility maintained - explicit scripts in apm.yml always take precedence

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 13 comments.

Show a summary per file

File	Description
src/apm_cli/core/script_runner.py	Core implementation of auto-discovery, runtime detection, and command generation logic
src/apm_cli/output/script_formatters.py	Added formatting method for auto-discovery messages
src/apm_cli/utils/console.py	Added new emoji icons for UI elements
tests/test_runnable_prompts.py	Comprehensive unit tests for discovery, runtime detection, and command generation
tests/integration/test_runnable_prompts_integration.py	Integration tests for install-and-run workflows
RUNNABLE-PROMPTS-PLAN.md	Detailed implementation plan and architecture documentation
VIRTUAL-PACKAGES-PLAN.md	Architecture plan for virtual package resolution

Comments suppressed due to low confidence (3)

src/apm_cli/core/script_runner.py:176

• The list_scripts() method doesn't include auto-discoverable prompts, which means apm list won't show them. Users might install prompts that become runnable via auto-discovery but won't see them in the list output. Consider extending this method to also discover and include prompt files, or add a separate method to list discoverable prompts.

    def list_scripts(self) -> Dict[str, str]:
        """List all available scripts from apm.yml.
        
        Returns:
            Dict mapping script names to their commands
        """
        config = self._load_config()
        return config.get('scripts', {}) if config else {}

tests/test_runnable_prompts.py:1

• The PR introduces a significant new feature (runnable prompts with auto-discovery) but the documentation files in the docs/ directory haven't been updated. According to the project's coding guidelines (Rule 1), documentation should be updated to reflect codebase changes. Specifically, docs/prompts.md should be updated to explain the auto-discovery behavior and precedence rules.

"""Unit tests for runnable prompts feature."""

src/apm_cli/output/script_formatters.py:332

• Except block directly handles BaseException.

            except: