docs: initialize constitution v1.0.0

.specify/templates/spec-template.md

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+# Feature Specification: [FEATURE NAME]
+
+**Feature Branch**: `[###-feature-name]`  
+**Created**: [DATE]  
+**Status**: Draft  
+**Input**: User description: "$ARGUMENTS"
+
+## Execution Flow (main)
+```
+1. Parse user description from Input
+   → If empty: ERROR "No feature description provided"
+2. Extract key concepts from description
+   → Identify: actors, actions, data, constraints
+3. For each unclear aspect:
+   → Mark with [NEEDS CLARIFICATION: specific question]
+4. Fill User Scenarios & Testing section
+   → If no clear user flow: ERROR "Cannot determine user scenarios"
+5. Generate Functional Requirements
+   → Each requirement must be testable
+   → Mark ambiguous requirements
+6. Identify Key Entities (if data involved)
+7. Run Review Checklist
+   → If any [NEEDS CLARIFICATION]: WARN "Spec has uncertainties"
+   → If implementation details found: ERROR "Remove tech details"
+8. Return: SUCCESS (spec ready for planning)
+```
+
+---
+
+## ⚡ Quick Guidelines
+- ✅ Focus on WHAT users need and WHY
+- ❌ Avoid HOW to implement (no tech stack, APIs, code structure)
+- 👥 Written for business stakeholders, not developers
+
+### Section Requirements
+- **Mandatory sections**: Must be completed for every feature
+- **Optional sections**: Include only when relevant to the feature
+- When a section doesn't apply, remove it entirely (don't leave as "N/A")
+
+### For AI Generation
+When creating this spec from a user prompt:
+1. **Mark all ambiguities**: Use [NEEDS CLARIFICATION: specific question] for any assumption you'd need to make
+2. **Don't guess**: If the prompt doesn't specify something (e.g., "login system" without auth method), mark it
+3. **Think like a tester**: Every vague requirement should fail the "testable and unambiguous" checklist item
+4. **Common underspecified areas**:
+   - User types and permissions
+   - Data retention/deletion policies  
+   - Performance targets and scale
+   - Error handling behaviors
+   - Integration requirements
+   - Security/compliance needs
+
+---
+
+## User Scenarios & Testing *(mandatory)*
+
+### Primary User Story
+[Describe the main user journey in plain language]
+
+### Acceptance Scenarios
+1. **Given** [initial state], **When** [action], **Then** [expected outcome]
+2. **Given** [initial state], **When** [action], **Then** [expected outcome]
+
+### Edge Cases
+- What happens when [boundary condition]?
+- How does system handle [error scenario]?
+
+## Requirements *(mandatory)*
+
+### Functional Requirements
+- **FR-001**: System MUST [specific capability, e.g., "allow users to create accounts"]
+- **FR-002**: System MUST [specific capability, e.g., "validate email addresses"]  
+- **FR-003**: Users MUST be able to [key interaction, e.g., "reset their password"]
+- **FR-004**: System MUST [data requirement, e.g., "persist user preferences"]
+- **FR-005**: System MUST [behavior, e.g., "log all security events"]
+
+*Example of marking unclear requirements:*
+- **FR-006**: System MUST authenticate users via [NEEDS CLARIFICATION: auth method not specified - email/password, SSO, OAuth?]
+- **FR-007**: System MUST retain user data for [NEEDS CLARIFICATION: retention period not specified]
+
+### Key Entities *(include if feature involves data)*
+- **[Entity 1]**: [What it represents, key attributes without implementation]
+- **[Entity 2]**: [What it represents, relationships to other entities]
+
+---
+
+## Review & Acceptance Checklist
+*GATE: Automated checks run during main() execution*
+
+### Content Quality
+- [ ] No implementation details (languages, frameworks, APIs)
+- [ ] Focused on user value and business needs
+- [ ] Written for non-technical stakeholders
+- [ ] All mandatory sections completed
+
+### Requirement Completeness
+- [ ] No [NEEDS CLARIFICATION] markers remain
+- [ ] Requirements are testable and unambiguous  
+- [ ] Success criteria are measurable
+- [ ] Scope is clearly bounded
+- [ ] Dependencies and assumptions identified
+
+---
+
+## Execution Status
+*Updated by main() during processing*
+
+- [ ] User description parsed
+- [ ] Key concepts extracted
+- [ ] Ambiguities marked
+- [ ] User scenarios defined
+- [ ] Requirements generated
+- [ ] Entities identified
+- [ ] Review checklist passed
+
+---