feat: add Conductor plugin for Context-Driven Development

Add comprehensive Conductor plugin implementing Context-Driven Development
methodology with tracks, specs, and phased implementation plans.

Components:
- 5 commands: setup, new-track, implement, status, revert
- 1 agent: conductor-validator
- 3 skills: context-driven-development, track-management, workflow-patterns
- 18 templates for project artifacts

Documentation updates:
- README.md: Updated counts (68 plugins, 100 agents, 110 skills, 76 tools)
- docs/plugins.md: Added Conductor to Workflows section
- docs/agents.md: Added conductor-validator agent
- docs/agent-skills.md: Added Conductor skills section

Also includes Prettier formatting across all project files.

conductor/templates/product.md

@@ -0,0 +1,102 @@
+# Product Vision
+
+## Product Overview
+
+**Name:** {{PRODUCT_NAME}}
+
+**Tagline:** {{ONE_LINE_DESCRIPTION}}
+
+**Description:**
+{{DETAILED_DESCRIPTION}}
+
+## Problem Statement
+
+### The Problem
+
+{{PROBLEM_DESCRIPTION}}
+
+### Current Solutions
+
+{{EXISTING_SOLUTIONS}}
+
+### Why They Fall Short
+
+{{SOLUTION_GAPS}}
+
+## Target Users
+
+### Primary Users
+
+{{PRIMARY_USER_PERSONA}}
+
+- **Who:** {{USER_DESCRIPTION}}
+- **Goals:** {{USER_GOALS}}
+- **Pain Points:** {{USER_PAIN_POINTS}}
+- **Technical Proficiency:** {{TECHNICAL_LEVEL}}
+
+### Secondary Users
+
+{{SECONDARY_USER_PERSONA}}
+
+- **Who:** {{USER_DESCRIPTION}}
+- **Goals:** {{USER_GOALS}}
+- **Relationship to Primary:** {{RELATIONSHIP}}
+
+## Core Value Proposition
+
+### Key Benefits
+
+1. {{BENEFIT_1}}
+2. {{BENEFIT_2}}
+3. {{BENEFIT_3}}
+
+### Differentiators
+
+- {{DIFFERENTIATOR_1}}
+- {{DIFFERENTIATOR_2}}
+
+### Value Statement
+
+> {{VALUE_STATEMENT}}
+
+## Success Metrics
+
+### Key Performance Indicators
+
+| Metric       | Target       | Measurement Method |
+| ------------ | ------------ | ------------------ |
+| {{METRIC_1}} | {{TARGET_1}} | {{METHOD_1}}       |
+| {{METRIC_2}} | {{TARGET_2}} | {{METHOD_2}}       |
+| {{METRIC_3}} | {{TARGET_3}} | {{METHOD_3}}       |
+
+### North Star Metric
+
+{{NORTH_STAR_METRIC}}
+
+### Leading Indicators
+
+- {{LEADING_INDICATOR_1}}
+- {{LEADING_INDICATOR_2}}
+
+### Lagging Indicators
+
+- {{LAGGING_INDICATOR_1}}
+- {{LAGGING_INDICATOR_2}}
+
+## Out of Scope
+
+### Explicitly Not Included
+
+- {{OUT_OF_SCOPE_1}}
+- {{OUT_OF_SCOPE_2}}
+- {{OUT_OF_SCOPE_3}}
+
+### Future Considerations
+
+- {{FUTURE_CONSIDERATION_1}}
+- {{FUTURE_CONSIDERATION_2}}
+
+### Non-Goals
+
+- {{NON_GOAL_1}}
+- {{NON_GOAL_2}}