feat: add deployment guide, nginx/systemd configs, switch to adapter-node

- Add docs/DEPLOYMENT.md: step-by-step Proxmox LXC guide (Debian 13,
  PostgreSQL, nginx reverse proxy, systemd services)
- Add nginx/innercontext.conf: proxy /api/ → uvicorn, /mcp/ → uvicorn
  with SSE streaming support, / → SvelteKit Node server
- Add systemd/innercontext.service and innercontext-node.service
- Switch frontend from adapter-auto to adapter-node (required for
  +page.server.ts form actions); install adapter-node 5.5.4
- Update README.md: add frontend, MCP sections; fix /skin-snapshots →
  /skincare; update repo layout
- Replace frontend/README.md generic Svelte template with project docs

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

README.md

@@ -1,15 +1,17 @@
 # innercontext
 
-Personal health and skincare data hub. Collects structured data (products, routines, lab results, medications, skin snapshots) and exposes it via a REST API and MCP to an LLM agent.
+Personal health and skincare data hub. Collects structured data (products, routines, lab results, medications, skin snapshots) and exposes it via a REST API, MCP, and a web UI to an LLM agent.
 
 ## Repository layout
 
 ```
-backend/   Python backend — FastAPI REST API + SQLModel models
+backend/    Python backend — FastAPI REST API + MCP server + SQLModel models
+frontend/   SvelteKit web UI (Svelte 5, TypeScript, Tailwind CSS v4)
+docs/       Deployment guides
+nginx/      nginx config for production
+systemd/    systemd service units
 ```
 
-A frontend will be added in the future.
-
 ## Backend quick start
 
 **Requirements:** Python 3.12+, PostgreSQL, [uv](https://docs.astral.sh/uv/)
@@ -29,6 +31,22 @@ uv run uvicorn main:app --reload
 
 API docs available at `http://localhost:8000/docs`.
 
+## Frontend quick start
+
+**Requirements:** Node.js 22+, [pnpm](https://pnpm.io/)
+
+```bash
+cd frontend
+
+# Install dependencies
+pnpm install
+
+# Start dev server (proxies API calls to localhost:8000)
+pnpm dev
+```
+
+UI available at `http://localhost:5173`.
+
 ## API overview
 
 | Prefix | Resource |
@@ -39,9 +57,32 @@ API docs available at `http://localhost:8000/docs`.
 | `/health/lab-results` | Lab test results |
 | `/routines` | AM/PM skincare routines and steps |
 | `/routines/grooming-schedule` | Weekly grooming schedule |
-| `/skin-snapshots` | Weekly skin condition snapshots |
+| `/skincare` | Weekly skin condition snapshots |
 | `/health-check` | Liveness probe |
 
+## MCP server
+
+innercontext exposes 14 tools via [FastMCP](https://github.com/jlowin/fastmcp) at the StreamableHTTP endpoint `http://localhost:8000/mcp/mcp`.
+
+Tools include: `get_products`, `get_product`, `get_open_inventory`, `get_recent_routines`, `get_latest_skin_snapshot`, `get_skin_history`, `get_medications`, `get_expiring_inventory`, `get_grooming_schedule`, `get_recent_lab_results`, and more.
+
+Connect an MCP-compatible LLM agent by pointing it at `http://<host>/mcp/mcp`.
+
+## Frontend routes
+
+| Route | Description |
+|---|---|
+| `/` | Dashboard |
+| `/products` | Product list |
+| `/products/new` | Add product |
+| `/products/[id]` | Product detail / edit |
+| `/routines` | Routine list |
+| `/routines/new` | Create routine |
+| `/routines/[id]` | Routine detail |
+| `/health/medications` | Medications |
+| `/health/lab-results` | Lab results |
+| `/skin` | Skin condition snapshots |
+
 ## Development
 
 ```bash
@@ -53,10 +94,17 @@ uv run ruff check .
 # Format
 uv run black .
 uv run isort .
+
+# Tests
+uv run pytest
 ```
 
 ## Stack
 
-- **Runtime:** Python 3.12, FastAPI, Uvicorn
-- **ORM:** SQLModel 0.0.37 + SQLAlchemy, Pydantic v2
-- **Database:** PostgreSQL (psycopg3)
+- **Backend:** Python 3.12, FastAPI, Uvicorn, SQLModel 0.0.37 + SQLAlchemy, Pydantic v2, PostgreSQL (psycopg3)
+- **MCP:** FastMCP 3.0.2 (StreamableHTTP transport)
+- **Frontend:** SvelteKit 2, Svelte 5 (Runes), TypeScript, Tailwind CSS v4, shadcn-svelte
+
+## Deployment
+
+See [docs/DEPLOYMENT.md](docs/DEPLOYMENT.md) for a step-by-step guide for a Proxmox LXC setup (Debian 13, nginx, systemd services).