docs: Rebuild documentation as enterprise-grade TLAS platform
- Migrate from custom HTTP server to VitePress framework
- Rename project to Tokenized License Approval System (TLAS)
- Add comprehensive documentation for all stakeholders:
- Business: Executive summary, value proposition, governance
- Operations: Infrastructure, installation, monitoring, backup
- Departments: User guide, workflows, verification, issuance
- Developers: API reference, authentication, webhooks, SDKs
- Compliance: OWASP, DPDP Act, IT Act, audit framework
- Add modern theme with dark mode and full-text search
- Update Dockerfile for VitePress build process
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-02-10 00:05:20 -04:00
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# Architecture Overview
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## System Architecture
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```
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┌─────────────────────────────────────────────────────────────────────┐
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2026-02-10 00:46:25 -04:00
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│ License Authority Platform │
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docs: Rebuild documentation as enterprise-grade TLAS platform
- Migrate from custom HTTP server to VitePress framework
- Rename project to Tokenized License Approval System (TLAS)
- Add comprehensive documentation for all stakeholders:
- Business: Executive summary, value proposition, governance
- Operations: Infrastructure, installation, monitoring, backup
- Departments: User guide, workflows, verification, issuance
- Developers: API reference, authentication, webhooks, SDKs
- Compliance: OWASP, DPDP Act, IT Act, audit framework
- Add modern theme with dark mode and full-text search
- Update Dockerfile for VitePress build process
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-02-10 00:05:20 -04:00
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├─────────────────────────────────────────────────────────────────────┤
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│ │
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│ ┌─────────────────────────────────────────────────────────────┐ │
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│ │ Presentation Layer │ │
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│ │ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │ │
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│ │ │ Citizen │ │ Department │ │ Admin │ │ │
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│ │ │ Portal │ │ Portal │ │ Console │ │ │
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│ │ │ (Angular) │ │ (Angular) │ │ (Angular) │ │ │
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│ │ └──────────────┘ └──────────────┘ └──────────────┘ │ │
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│ └─────────────────────────────────────────────────────────────┘ │
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│ │ │
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│ ┌─────────────────────────────────────────────────────────────┐ │
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│ │ Application Layer │ │
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│ │ │ │
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│ │ ┌─────────────────────────────────────────────────────┐ │ │
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│ │ │ API Gateway (NestJS) │ │ │
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│ │ │ ┌───────────┐ ┌───────────┐ ┌───────────┐ │ │ │
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│ │ │ │ Auth │ │Applications│ │ Documents │ │ │ │
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│ │ │ │ Module │ │ Module │ │ Module │ │ │ │
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│ │ │ └───────────┘ └───────────┘ └───────────┘ │ │ │
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│ │ └─────────────────────────────────────────────────────┘ │ │
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│ └─────────────────────────────────────────────────────────────┘ │
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│ │ │
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│ ┌─────────────────────────────────────────────────────────────┐ │
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│ │ Data Layer │ │
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│ │ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │ │
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│ │ │ PostgreSQL │ │ Redis │ │ File Store │ │ │
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│ │ │ (Primary) │ │ (Cache) │ │ (Documents) │ │ │
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│ │ └──────────────┘ └──────────────┘ └──────────────┘ │ │
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│ └─────────────────────────────────────────────────────────────┘ │
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│ │ │
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│ ┌─────────────────────────────────────────────────────────────┐ │
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│ │ Blockchain Layer │ │
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│ │ ┌────────────────────────────────────────────────────┐ │ │
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│ │ │ Hyperledger Besu Network │ │ │
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│ │ │ ┌─────────────┐ ┌─────────────┐ │ │ │
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│ │ │ │ NFT Smart │ │ Ledger │ │ │ │
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│ │ │ │ Contract │ │ Storage │ │ │ │
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│ │ │ └─────────────┘ └─────────────┘ │ │ │
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│ │ └────────────────────────────────────────────────────┘ │ │
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│ └─────────────────────────────────────────────────────────────┘ │
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│ │
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└─────────────────────────────────────────────────────────────────────┘
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```
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## Key Design Decisions
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| Decision | Rationale |
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|----------|-----------|
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| Angular SPA | Rich interactive UI, offline capability |
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| NestJS Backend | TypeScript consistency, modular architecture |
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| PostgreSQL | ACID compliance, JSON support, proven reliability |
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| Hyperledger Besu | Ethereum-compatible, enterprise features, private network |
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| Docker Containers | Consistent deployment, scalability |
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## Data Flow
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1. **Application Submission**: User → Frontend → API → Database → Workflow Engine
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2. **Document Upload**: User → Frontend → API → File Storage → Hash to Blockchain
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3. **Certificate Issuance**: Approval → Smart Contract → NFT Minted → Certificate Generated
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## Scalability
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- Horizontal scaling: Multiple API instances behind load balancer
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- Database scaling: Read replicas for query load
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- Caching: Redis for session and query caching
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- Async processing: Queue-based document processing
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