Implement Configuration Management System

[prosdev]

Description

Implement a comprehensive configuration management system to handle repository-specific settings, model selection, context filtering rules, and integration preferences. This will provide a flexible foundation for customizing dev-agent behavior across different repositories and use cases.

Acceptance Criteria

• Configuration system supports repository-specific settings
• Model selection and tuning parameters are configurable
• Context filtering rules can be defined and applied
• Integration preferences can be set per repository
• Configuration validation ensures valid settings
• Default configurations work out-of-the-box
• Configuration can be overridden via environment variables
• Support for both local and shared team configurations

Technical Requirements

• Implement configuration schema with validation (using Zod or similar)
• Support multiple configuration sources (files, environment variables, CLI flags)
• Create configuration hierarchy (global → repository → local overrides)
• Implement configuration hot-reloading for development
• Define clear configuration interfaces for all components
• Support JSON and YAML configuration formats
• Include configuration migration system for schema changes
• Add configuration documentation and examples

Branch: feat/configuration-management
Priority: High
Estimate: 2 days
Parent Epic: #1

[prosdev]

Note: This issue was mistakenly closed by PR #18.

PR #18 actually implemented the Explorer Subagent (Issue #9), not Configuration Management.

Configuration Management is still pending and remains open for implementation.

For the actual Explorer implementation, see:

• PR feat(explorer): implement Explorer subagent with modular utilities #18 (initial implementation)
• PR feat(explorer): complete Coordinator integration #22 (Coordinator integration)