chore: remove unused Redis service and references (#26)

docs/ARCHITECTURE.md

@@ -248,7 +248,6 @@ routes/setup.ts   ──→  db (app_config)
 | Local auth storage   | scrypt PHC hash in `local_credentials.password_hash`; session signed with `LOCAL_SESSION_SECRET` env var                    |
 | Push notifications   | `web-push` (VAPID) → APNs (iOS) / FCM (Android)                                                                             |
 | Live list sync       | In-process Node.js `EventEmitter` → SSE (`text/event-stream`)                                                               |
-| Redis                | Present in stack (image: `redis:7-alpine`); not used in current runtime (reserved for future multi-process pub/sub)         |
 | PWA                  | React 19 + Vite 8 + `vite-plugin-pwa` (Workbox `injectManifest` mode)                                                       |
 | Networking           | Pangolin/Newt tunnel — no open ports; split-DNS internal domain                                                             |
 | Deployment           | Docker Compose on Unraid; single `api` container serves both the API and the PWA static build                               |

docs/CONFIGURATION.md

@@ -163,7 +163,7 @@ VAPID_SUBJECT=mailto:admin@example.com
 
 ### Local Development (host-side)
 
-The dev Docker Compose override (`docker-compose.dev.yml`) exposes MariaDB on `localhost:3306` and Redis on `localhost:6379`. To run the API and PWA directly on the host:
+The dev Docker Compose override (`docker-compose.dev.yml`) exposes MariaDB on `localhost:3306`. To run the API and PWA directly on the host:
 
 ```bash
 # Build the API first (dev script runs compiled output)

docs/DEVELOPMENT.md

@@ -35,7 +35,7 @@ src/
 
 - **Node.js 22 LTS** — the Dockerfile base is `node:22-alpine`; match this locally
 - **pnpm 11.5.1** — managed via corepack (`corepack enable pnpm`)
-- **Docker + Docker Compose** — for MariaDB and Redis in dev
+- **Docker + Docker Compose** — for MariaDB in dev
 - **TypeScript 5.x** — installed per-workspace as a dev dependency
 
 ## Local Setup
@@ -48,13 +48,13 @@ pnpm install
 
 This installs all workspace packages (`apps/api` and `apps/pwa`) in a single pass.
 
-### 2. Start the dev database and Redis
+### 2. Start the dev database
 
 ```bash
-docker compose -f docker-compose.yml -f docker-compose.dev.yml up mariadb redis -d
+docker compose -f docker-compose.yml -f docker-compose.dev.yml up mariadb -d
 ```
 
-The dev override (`docker-compose.dev.yml`) exposes MariaDB on `localhost:3306` and Redis on `localhost:6379`.
+The dev override (`docker-compose.dev.yml`) exposes MariaDB on `localhost:3306`.
 
 ### 3. Configure environment variables
 
@@ -238,17 +238,16 @@ Migration files live in `apps/api/src/db/migrations/` and are committed to versi
 ## Docker Compose Dev Stack
 
 ```bash
-# Bring up the full dev stack (API in Docker + MariaDB + Redis, with ports exposed)
+# Bring up the full dev stack (API in Docker + MariaDB, with ports exposed)
 docker compose -f docker-compose.yml -f docker-compose.dev.yml up
 
 # Bring up only backing services (run API on host for faster iteration)
-docker compose -f docker-compose.yml -f docker-compose.dev.yml up mariadb redis -d
+docker compose -f docker-compose.yml -f docker-compose.dev.yml up mariadb -d
 ```
 
 The dev override:
 
 - Exposes MariaDB on `localhost:3306`
-- Exposes Redis on `localhost:6379`
 - Mounts `apps/api/src` into the container for live source access
 - Sets `NODE_ENV=development`
 

docs/GETTING-STARTED.md

@@ -12,7 +12,7 @@ This guide walks from a fresh clone to a running local development environment.
 | ----------------------- | ------------------ | ---------------------------------------------------------------------------------- |
 | Node.js                 | `22 LTS`           | Matches the `node:22-alpine` base in `apps/api/Dockerfile`                         |
 | pnpm                    | `11.5.1`           | Pinned in `package.json` `packageManager` field; enable via `corepack enable pnpm` |
-| Docker + Docker Compose | Any recent version | Used to run MariaDB and Redis locally                                              |
+| Docker + Docker Compose | Any recent version | Used to run MariaDB locally                                                        |
 
 **Node version management:** If you use nvm or fnm, install Node 22 LTS and set it as the default before continuing. There is no `.nvmrc` in the repo; the target version comes from the Dockerfile.
 
@@ -72,10 +72,10 @@ Open `.env` and fill in the required values. See [docs/CONFIGURATION.md](CONFIGU
 ### 5. Start the database services
 
 ```bash
-docker compose -f docker-compose.yml -f docker-compose.dev.yml up -d mariadb redis
+docker compose -f docker-compose.yml -f docker-compose.dev.yml up -d mariadb
 ```
 
-This starts MariaDB (bound to `localhost:3306`) and Redis (`localhost:6379`) using the dev override. Wait for MariaDB to pass its health check before proceeding.
+This starts MariaDB (bound to `localhost:3306`) using the dev override. Wait for MariaDB to pass its health check before proceeding.
 
 ### 6. Run database migrations
 

docs/TESTING.md

@@ -89,7 +89,7 @@ pnpm --filter @familysync/pwa test:e2e:ui
 pnpm --filter @familysync/pwa test:e2e:headed
 ```
 
-The `baseURL` is driven by `PLAYWRIGHT_BASE_URL` (default: `http://localhost:5173`). In local mode the config reuses a running Vite dev server; in CI it starts Vite itself. The API, MariaDB, and Redis must already be running via Docker Compose before launching e2e tests locally — see `docs/DEVELOPMENT.md`.
+The `baseURL` is driven by `PLAYWRIGHT_BASE_URL` (default: `http://localhost:5173`). In local mode the config reuses a running Vite dev server; in CI it starts Vite itself. The API and MariaDB must already be running via Docker Compose before launching e2e tests locally — see `docs/DEVELOPMENT.md`.
 
 ### Type checking (separate from tests — required)
 

docs/deployment.md

@@ -16,11 +16,10 @@ Self-hosted Docker deployment on Unraid behind Authelia OIDC and a Pangolin/Newt
 
 The production compose file brings up three services:
 
-| Service   | Image                                                | Purpose                                                    |
-| --------- | ---------------------------------------------------- | ---------------------------------------------------------- |
-| `api`     | Built from `apps/api/Dockerfile` target `production` | Hono API + compiled React PWA, listens on port 3000        |
-| `mariadb` | `mariadb:11`                                         | Persistent MariaDB database                                |
-| `redis`   | `redis:7-alpine`                                     | Present for live list sync (pub/sub); unused until Phase 4 |
+| Service   | Image                                                | Purpose                                             |
+| --------- | ---------------------------------------------------- | --------------------------------------------------- |
+| `api`     | Built from `apps/api/Dockerfile` target `production` | Hono API + compiled React PWA, listens on port 3000 |
+| `mariadb` | `mariadb:11`                                         | Persistent MariaDB database                         |
 
 ---