v0.1.0 - Main-session evaluation

Added

• Main-session evaluation approach (vs. subagent)
• Bypass prefixes: * (skip evaluation), / (slash commands), # (memorize)
• AskUserQuestion tool integration for targeted clarifying questions
• Conversation history awareness to avoid redundant exploration
• Safety improvements and official hook pattern compliance

Changed

• Refactored from subagent to main-session evaluation
• Moved from heuristic evaluation to context-aware evaluation
• Simplified to non-prescriptive approach with confirmation step

Removed

• Subagent-based evaluation (moved to main session)
• Heuristic-based prompt classification