Initial migration guide structure

- Created repository layout (docs, screenshots, backups, docker-configs)
- Added comprehensive README with project overview
- Created 01-overview.md with migration strategy
- Created 02-gitea-migration.md execution template
- Defined success criteria and risk mitigation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

docs/01-overview.md

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+# Migration Overview
+
+**Document Version:** 1.0
+**Created:** 2025-11-16T10:30:00Z
+**Last Updated:** 2025-11-16T10:30:00Z
+
+## Objective
+
+Migrate Gitea service from photon.obnh.io to fry.obr.sh with zero data loss and minimal downtime.
+
+## Infrastructure Details
+
+### Source Server: photon.obnh.io
+- **Role:** Legacy container host
+- **Management:** Dockge WebUI
+- **Services:** Gitea (gitea + gitea_postgres containers)
+
+### Target Server: fry.obr.sh
+- **IP:** 45.131.64.213
+- **Role:** New container host
+- **Management:** Dockge WebUI
+- **Status:** Ready for deployment
+
+## Critical Components
+
+### Gitea Service
+- **Container 1:** gitea (application)
+- **Container 2:** gitea_postgres (database)
+- **Database:** PostgreSQL with critical repository data
+- **Volumes:** Git repository data, configs, database files
+
+## Migration Strategy
+
+1. **Backup-First Approach**
+   - Full PostgreSQL dump before any changes
+   - Volume snapshots where applicable
+   - Verify backup integrity
+
+2. **Graceful Shutdown**
+   - Stop application container first
+   - Stop database container second
+   - Verify all processes stopped
+
+3. **Data Transfer**
+   - Secure transfer of database dumps
+   - Transfer docker-compose configuration
+   - Preserve volume data
+
+4. **Staged Deployment**
+   - Deploy database container first
+   - Restore database from dump
+   - Deploy application container
+   - Verify connectivity
+
+5. **Verification**
+   - Browser-based functional testing
+   - DNS resolution verification
+   - Repository access testing
+
+## Risk Mitigation
+
+- **Database Corruption:** Full pg_dump before migration
+- **Network Issues:** Local backups retained on source
+- **Configuration Drift:** Exact docker-compose.yml export
+- **Service Downtime:** Documented rollback procedure
+
+## Success Criteria
+
+- [ ] Gitea accessible via browser on fry.obr.sh
+- [ ] All repositories intact and browsable
+- [ ] User authentication functional
+- [ ] Database queries responding correctly
+- [ ] DNS routing verified (if applicable)
+- [ ] All documentation committed to git
+
+## Timeline
+
+- **Preparation:** 30 minutes
+- **Backup:** 15 minutes
+- **Migration:** 45 minutes
+- **Verification:** 30 minutes
+- **Total:** ~2 hours
+
+## Next Steps
+
+Proceed to [02-gitea-migration.md](./02-gitea-migration.md) for detailed execution steps.