docs: add enterprise README with architecture, API reference, and badges

[Taas-ai]

Summary

• Adds a comprehensive enterprise-grade README.md to replace the missing project documentation
• Includes CI badge, license badge, Node/TypeScript/PQC version badges
• Covers architecture diagram (ASCII), quick start, project structure, full API reference, security section, and contributing guidelines links

Details

This is the first step in the enterprise GitHub governance upgrade. The README includes:

• Header: Logo, title, description, and 6 status badges (CI, license, Node, TypeScript, PQC, tests)
• Overview: Key capabilities (PQC, Tokenized KYC, Offline CBDC, Biometric MFA, Smart Wallet, AI Anomaly Detection)
• Architecture: ASCII diagram showing Client (React 19) → Server (Express) → PostgreSQL stack
• Quick Start: Prerequisites table, dev/test/build/Docker commands
• Project Structure: Full directory tree with annotations
• API Reference: 13 endpoints documented in table format
• Security: Cryptographic standards (FIPS 203/204), links to SECURITY.md
• License: Business Source License 1.1 with Apache 2.0 change date (2030)

Next Steps

Follow-up PRs will add remaining enterprise governance files:

• LICENSE, SECURITY.md, CONTRIBUTING.md, CODE_OF_CONDUCT.md
• CODEOWNERS, .editorconfig, .nvmrc, CHANGELOG.md
• .github/ISSUE_TEMPLATE/, .github/PULL_REQUEST_TEMPLATE.md, .github/dependabot.yml
• CI/CD workflow upgrade (caching, matrix builds, Docker verification)

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Note

Low Risk
Documentation-only change; no code, runtime, or security behavior is modified.

Overview
Adds a new top-level README.md (previously missing) to provide enterprise-style project documentation.

The README introduces badges (CI/license/runtime/test status), an overview of key capabilities, an ASCII architecture diagram, quick-start commands (dev/test/build/Docker), a project structure tree, an API reference table of endpoints, and links to SECURITY.md, CONTRIBUTING.md, and LICENSE with BSL 1.1 change-date notes.

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Project	Deployment	Actions	Updated (UTC)
q-grid-in	Ready	Preview, Comment	Feb 12, 2026 9:45am