feat(lab-02): complete Phase 3 - Network & VPC lab
Implement Lab 02 with Docker bridge networks simulating VPC/Subnets.
Test Infrastructure (RED phase):
- 6 bash test scripts for network creation, isolation, INF-02 compliance
- Fail-fast orchestration with run-all-tests.sh
- Quick validation script for development
Documentation (Diátaxis framework):
- 3 tutorials: VPC creation, container deployment, isolation verification
- 4 how-to guides: create network, inspect config, test isolation, cleanup
- 3 reference docs: Docker network commands, Compose syntax, VPC mapping
- 1 explanation: Docker ↔ VPC parallels (PARA-01/02/03/04)
Infrastructure (GREEN phase):
- docker-compose.yml with VPC networks (10.0.1.0/24, 10.0.2.0/24)
- 5 services: web, app, db, test-public, test-private
- INF-02 compliant: 127.0.0.1 bindings only, no 0.0.0.0
- Private network with --internal flag
- Multi-homed app container (public + private networks)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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