Initialize project structure with foundational files including .gitignore, README, and specification templates. Establish project constitution outlining core principles for code quality, testing, user experience, and performance. Add initial feature specification for Reference Board Viewer application.

.specify/README.md

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+# .specify Directory
+
+This directory contains the project's governance framework and specification templates.
+
+## Purpose
+
+The `.specify` system provides:
+- **Constitutional Principles:** Binding rules for all development work
+- **Template Library:** Standardized formats for plans, specs, and tasks
+- **Consistency Enforcement:** Automated checks that code adheres to principles
+- **Living Documentation:** Evolving guidance that grows with the project
+
+## Directory Structure
+
+```
+.specify/
+├── memory/
+│   └── constitution.md          # Project constitution (versioned)
+├── templates/
+│   ├── plan-template.md         # Feature planning template
+│   ├── spec-template.md         # Technical specification template
+│   ├── tasks-template.md        # Task tracking template
+│   └── commands/
+│       └── constitution.md      # Constitution amendment workflow
+├── plans/                       # (Create as needed) Feature plans
+├── specs/                       # (Create as needed) Specifications
+└── tasks/                       # (Create as needed) Task lists
+```
+
+## Key Files
+
+### constitution.md
+The project's binding principles covering:
+- Code quality and maintainability
+- Testing discipline (≥80% coverage)
+- User experience consistency
+- Performance and efficiency
+
+**Version:** 1.0.0 (ratified 2025-11-02)
+
+Every code change must align with constitutional principles. The constitution can be amended via pull request with proper versioning and impact analysis.
+
+### Templates
+
+#### plan-template.md
+Use for high-level feature planning. Includes:
+- Objectives and scope definition
+- Constitution alignment checklist
+- Technical approach and architecture
+- Implementation phases
+- Risk assessment
+
+#### spec-template.md
+Use for detailed technical specifications. Includes:
+- Functional and non-functional requirements
+- Design and data models
+- API specifications with types
+- Testing strategy
+- Performance analysis
+
+#### tasks-template.md
+Use for sprint/milestone task tracking. Includes:
+- Tasks categorized by constitutional principle
+- Estimation guidelines (S/M/L/XL)
+- Completion checklist
+- Blocked task tracking
+
+## Workflow
+
+1. **Plan** → Create plan from template, verify constitutional alignment
+2. **Specify** → Write detailed spec with testable requirements
+3. **Implement** → Break down into tasks, execute with continuous testing
+4. **Review** → Code review validates principle adherence
+5. **Deploy** → Merge and monitor success metrics
+
+## Constitutional Compliance
+
+Every plan, spec, and task must explicitly address:
+
+✅ **Code Quality:** How will this maintain/improve maintainability?  
+✅ **Testing:** What tests ensure correctness? (≥80% coverage)  
+✅ **User Experience:** How does this impact users positively?  
+✅ **Performance:** What are the performance implications?
+
+## Amending the System
+
+### To amend the constitution:
+1. PR to `constitution.md` with rationale
+2. Increment version (MAJOR.MINOR.PATCH)
+3. Update dependent templates
+4. Add Sync Impact Report
+
+### To improve templates:
+1. PR to template file with changes
+2. Explain benefit and backward compatibility
+3. Update examples if structure changes
+
+## Version History
+
+- **1.0.0 (2025-11-02):** Initial specification system established with four core principles
+
+## Questions?
+
+Refer to the [main README](../README.md) or the constitution itself for detailed guidance.
+