# Design docs — production-readiness updates

This folder records **architecture and design changes** landed while taking RentalDriveGo to production readiness (Phases 0–4). It complements the longer plans under `docs/ops/` and `docs/project-design/`.

## Investor diligence (Word)

| Document | Notes |
|----------|--------|
| [RentalDriveGo_Technical_Architecture_and_Investor_Due_Diligence.docx](./RentalDriveGo_Technical_Architecture_and_Investor_Due_Diligence.docx) | **v1.1 (12 Aug 2026)** — updated executive status, risk/roadmap annotations, and **Addendum A** for Phases 0–4 implementation. Original v1.0 backup: `RentalDriveGo_Technical_Architecture_and_Investor_Due_Diligence.v1.0.backup.docx` |

## Markdown design notes

| Doc | Purpose |
|-----|---------|
| [PRODUCTION_READINESS_IMPLEMENTED.md](./PRODUCTION_READINESS_IMPLEMENTED.md) | What was implemented per phase (code + runbooks) |
| [RUNTIME_AND_OPS_SURFACE.md](./RUNTIME_AND_OPS_SURFACE.md) | Worker, Redis, storage, `/ready`, `/metrics`, env knobs |
| [SECURITY_DESIGN_UPDATES.md](./SECURITY_DESIGN_UPDATES.md) | Security findings S1–S15 design outcomes |
| [COMMERCIAL_AND_DATA_DESIGN.md](./COMMERCIAL_AND_DATA_DESIGN.md) | Plan catalog, billing/notification SoT, privacy map |

## Related ADRs

- `docs/ADR-001-disable-per-tenant-containers.md`
- `docs/ADR-002-defer-postgres-rls.md`
- `docs/ADR-003-defer-service-extraction.md`

## Canonical execution plan

- `docs/ops/RentalDriveGo_Production_Readiness_Plan.md`

## Status (2026-08-12)

**Application code and in-repo runbooks for Phases 0–4 are complete.** Remaining production-ready gates are **ops evidence** (CI smoke, restore/alert drills, soak, pen-test), not missing product features. Phase 4 does **not** extract microservices by default (ADR-003).