chore: add .github/ISSUE_TEMPLATE/adr.md from MokoStandards

.github/ISSUE_TEMPLATE/adr.md

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+---
+name: Architecture Decision Record (ADR)
+about: Propose or document an architectural decision
+title: '[ADR] '
+labels: 'architecture, decision'
+assignees: ''
+
+---
+
+<!--
+SPDX-License-Identifier: GPL-3.0-or-later
+Copyright (C) 2024-2026 Moko Consulting Tech
+
+File: .github/ISSUE_TEMPLATE/adr.md
+Description: Issue template for Architecture Decision Records
+Project: .github-private
+Author: Moko Consulting Tech
+Version: 03.02.00
+
+Revision History:
+- 2026-01-04: Added MokoStandards compliant header with copyright, file info, and metadata
+- 2026-03-11: Version bump to 03.02.00 to match MokoStandards
+- 2024: Initial creation
+-->
+
+## ADR Number
+ADR-XXXX
+
+## Status
+- [ ] Proposed
+- [ ] Accepted
+- [ ] Deprecated
+- [ ] Superseded by ADR-XXXX
+
+## Context
+Describe the issue or problem that motivates this decision.
+
+## Decision
+State the architecture decision and provide rationale.
+
+## Consequences
+### Positive
+- List positive consequences
+
+### Negative
+- List negative consequences or trade-offs
+
+### Neutral
+- List neutral aspects
+
+## Alternatives Considered
+### Alternative 1
+- Description
+- Pros
+- Cons
+- Why not chosen
+
+### Alternative 2
+- Description
+- Pros
+- Cons
+- Why not chosen
+
+## Implementation Plan
+1. Step 1
+2. Step 2
+3. Step 3
+
+## Stakeholders
+- **Decision Makers**: @user1, @user2
+- **Consulted**: @user3, @user4
+- **Informed**: team-name
+
+## Technical Details
+### Architecture Diagram
+```
+[Add diagram or link]
+```
+
+### Dependencies
+- Dependency 1
+- Dependency 2
+
+### Impact Analysis
+- **Performance**: [Impact description]
+- **Security**: [Impact description]
+- **Scalability**: [Impact description]
+- **Maintainability**: [Impact description]
+
+## Testing Strategy
+- [ ] Unit tests
+- [ ] Integration tests
+- [ ] Performance tests
+- [ ] Security tests
+
+## Documentation
+- [ ] Architecture documentation updated
+- [ ] API documentation updated
+- [ ] Developer guide updated
+- [ ] Runbook created
+
+## Migration Path
+Describe how to migrate from current state to new architecture.
+
+## Rollback Plan
+Describe how to rollback if issues occur.
+
+## Timeline
+- **Proposal Date**:
+- **Decision Date**:
+- **Implementation Start**:
+- **Expected Completion**:
+
+## References
+- Related ADRs:
+- External resources:
+- RFCs:
+
+## Review Checklist
+- [ ] Aligns with enterprise architecture principles
+- [ ] Security implications reviewed
+- [ ] Performance implications reviewed
+- [ ] Cost implications reviewed
+- [ ] Compliance requirements met
+- [ ] Team consensus achieved