docs: streamline README and split guides

docs/getting-started.md

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+# Getting Started
+
+## Prerequisites
+
+- [Go](https://go.dev/doc/install), using the module version in `go.mod`.
+- [Node.js](https://nodejs.org/) 18+ and npm.
+- Internet access for ingestion and TUI OpenF1 calls.
+- For e2e and visual tests: `npx playwright install` after `npm install` at the repo root.
+
+## Install
+
+```bash
+git clone https://github.com/AmanTahiliani/box-box.git
+cd box-box
+
+npm install                    # Playwright and repo-level test scripts
+npm install --prefix frontend  # Vite + React app
+```
+
+## Build
+
+```bash
+go build -o box-box ./cmd/main.go
+npm run build --prefix frontend   # writes frontend/dist
+```
+
+## Run: Web
+
+Build the frontend first, then start web mode. Go walks up from the current directory to find `frontend/dist/index.html`; if missing, it serves embedded legacy assets.
+
+```bash
+npm run build --prefix frontend
+go run ./cmd/main.go --web
+# http://localhost:8080
+```
+
+Use a specific domain database or port:
+
+```bash
+go run ./cmd/main.go --web --db ~/.local/share/box-box/boxbox.db --port 8080
+```
+
+## Run: Web Dev
+
+Vite proxies `/api` to the Go server. Set `BOXBOX_API_PORT` to match the Go `--port`.
+
+Terminal 1: API with a seeded database:
+
+```bash
+go run ./scripts/seed-e2e-db/main.go --db /tmp/boxbox-dev.db
+BOXBOX_DISABLE_LIVE=1 go run ./cmd/main.go --web --db /tmp/boxbox-dev.db --port 18080
+```
+
+Terminal 2: frontend:
+
+```bash
+BOXBOX_API_PORT=18080 npm run dev --prefix frontend
+# http://localhost:5173
+```
+
+`BOXBOX_DISABLE_LIVE=1` skips starting the SignalR bridge, which is useful for CI and local UI work.
+
+## Run: TUI
+
+```bash
+go run ./cmd/main.go
+# or: ./box-box
+```
+
+Logs go to `box-box.log` in the project directory so the terminal stays clean.
+
+## TUI Keybindings
+
+| Key | Action |
+| --- | --- |
+| `1`-`7` | Home, Standings, Calendar, Race Detail, Drivers, Live, Track Map |
+| `tab` / `shift+tab` | Next / previous tab |
+| `j`/`k`, `enter`, `b`/`esc` | Navigate, select, back |
+| `s`, `b`, `p` | Live: sectors, battles, pit window |
+| `r` | Race replay in Race Detail race sessions |
+| `y` | Cycle season year |
+| `q` / `ctrl+c` | Quit |
+
+## Web Routes
+
+| Route | Purpose |
+| --- | --- |
+| `/` | Command Center: race-weekend home with GP identity, live status, schedule, and analysis links |
+| `/race-hub?session_key=<key>` | Race Hub: session workspace with Overview, Race Story, Strategy, Lap Data, Conditions, Race Control, and Data Status tabs |
+| `/admin` | Admin / Data Health: ingestion coverage, local data status, and suggested CLI commands |
+| `/data-library` | Legacy alias for Admin / Data Health |
+| `/live` | Live Timing: timing tower and race control via SSE when a session is live |
+
+Example after seeding: `http://localhost:5173/race-hub?session_key=9472`.