docs: tighten features list in readme

readme.md

@@ -32,63 +32,35 @@ Dashboard — mobile (390 px) and desktop (1280 px):
 
 ## Features
 
-- **Live OBD-II data** over a cheap USB ELM327-compatible adapter: speed, RPM, coolant
-  temperature, fuel level, throttle position, MIL status, stored DTCs, and odometer when the ECU
-  supports it. Includes automatic background reconnects, serialized queries, and clear
-  adapter/ELM327/ECU diagnostics
-- **Real GPS tracking** via a Waveshare SIM868 GNSS/GSM/Bluetooth HAT, plotted live on an
-  offline Leaflet map (pre-cached map tiles — no internet needed in the car). The module powers
-  itself on through the HAT's GPIO PWRKEY wiring after a Pi power cycle
-- **Self-hosted WiFi hotspot** so you can load the web UI on your phone from inside the car,
-  with automatic switching back to home WiFi when it is available (`http://yaris.local` — no
-  port number)
-- **Dashcam file retrieval** — detects a USB dashcam automatically (any brand/folder layout,
-  no hardcoded device path), mounts it read-only, and safely copies footage locally. Verified
-  against a real 28GB/87-file import. The web UI can also browse, sort, and delete individual or
-  all videos directly from the connected dashcam with confirmed, temporary read-write operations,
-  plus import one file or any checkbox selection instead of always importing the whole card
-- **Local video library** — browse imported clips with cached thumbnails and upload status,
-  play H.264 footage inline with seeking, and delete only the local Pi copy. Optional retention
-  can automatically remove older local copies after their exact content is confirmed uploaded
-- **Remote upload** — a self-hosted server (Flask + Postgres, `server/`) receives trip/GPS
-  logs and dashcam footage over the internet (via Cloudflare Tunnel or a plain port-forward).
-  Dashcam videos upload in resumable 40MB chunks (works around tunnel body-size limits and keeps
-  the Pi's memory footprint flat regardless of file size); a UI toggle can pause dashcam uploads
-  independently while trip logs keep syncing
-- **Remote web portal** — a login-protected browser portal at the same server URL:
-  trip history with OSM/CARTO live map and route replay, dashcam archive browsing with inline
-  video player and Range-request seeking, overview stats dashboard, delete buttons for trips and
-  clips, and a device-settings page for editing the synced owner/car/avatar values that the Pi
-  pulls from the server. The portal can register/delete multiple devices, reveal a one-time API
-  key at creation/rotation time, and request a sync for a selected device. When the Pi has
-  Sync with server enabled, those identity changes hot-reload into the running local UI on the
-  next successful sync instead of waiting for a manual restart. Shared `history.js` code runs on
-  both the Pi and the server — tile source and zoom limits are configured per-deployment via HTML
-  data attributes
-- **Optional cellular fallback** through the SIM868 for small trip-log uploads when normal
-  WiFi/Ethernet is unavailable (dashcam video stays off cellular)
-- **Dedicated local status page** with live Pi health, service states, uplink/server/GPS/OBD
-  diagnostics, plus quick actions for server test, sync-now, uplink reconnect, and app restart
-- **Motion-aware local-first** SQLite logging — five-second motion checks without five-second
-  parked writes, plus retry-safe remote sync and automatic backoff
-- **Pi health + diagnostics** — a dedicated local Status page shows temperature, RAM, disk,
-  uptime, undervoltage/throttling warnings, service state, uplink/server reachability, GPS state,
-  OBD presence, and safe quick actions
-- **Offline-first alerts** — a notification bell on every page reports check-engine state,
-  storage pressure, upload backlog, temperature/power faults, and GPS loss while moving. Optional
-  ntfy delivery is available but remains disabled until configured
-- **Trip history and route replay** — detects motion from OBD wheel speed with sustained GPS
-  displacement as a fallback, summarizes distance and speed in metric units (km / km/h), and replays
-  each route as a line on the offline map with a timestamped play/pause timeline, moving marker, and
-  live reverse-geocoded location name during scrubbing. Tap any trip row on mobile to load the route
-- **Offline reverse geocoding** — a `/api/geocode` route on the Pi uses the `reverse_geocoder`
-  library (20 MB world dataset, no internet needed) for city/region, and upgrades to Nominatim
-  street-level when an internet uplink is available. Results are LRU-cached in-process. The browser
-  never calls any external geocoding service
-- **Offline web UI** built with Flask, Jinja, Bootstrap 5, Socket.IO, Chart.js, and Leaflet,
-  all served locally with a shared responsive page shell
-- **Headless Pi deployment** as a self-restarting `systemd` service with a 10-second BCM2835
-  hardware watchdog, verified across a real reboot
+- **Live OBD-II data** — speed, RPM, coolant temp, fuel level, throttle, MIL/DTC via USB ELM327.
+  Automatic reconnects with clear adapter/ECU diagnostics. DTC codes persist across reboots.
+- **Real GPS tracking** — Waveshare SIM868 GNSS HAT with GPIO PWRKEY auto-power-on. Live position
+  plotted on an offline Leaflet map (pre-cached tiles, no internet needed).
+- **WiFi hotspot** — auto-switches between home WiFi and a self-hosted AP for in-car phone access
+  at `http://yaris.local` (no port number). Phone hotspot uplink supported for on-the-road sync.
+- **Dashcam workflow** — auto-detects any USB dashcam, mounts read-only, browses files before
+  importing. Import one, selected, or all files. Delete individual or all files directly from the
+  dashcam. Verified against real 28GB/87-file hardware.
+- **Local video library** — browse imported clips with cached thumbnails and upload status. Inline
+  H.264 playback with seeking. Local-only delete. Optional auto-retention after confirmed upload.
+- **Remote sync** — trip logs and dashcam footage upload to a self-hosted Flask + Postgres server.
+  Dashcam videos stream in resumable 40MB chunks. Independent toggles for trip and dashcam uploads.
+- **Remote web portal** — login-protected at the server URL. Trip history with CARTO live map and
+  route replay, dashcam archive with inline player, overview stats, device management
+  (create/delete/rotate keys), and server-side device identity sync that hot-reloads on the Pi.
+- **Trip history and replay** — motion-aware detection (OBD wheel speed primary, GPS displacement
+  fallback). Metric summaries, offline route polyline, play/pause timeline with moving marker and
+  live reverse-geocoded location names. Tap-to-replay on mobile.
+- **Status page** — Pi health (temp, RAM, disk, uptime, throttling), service states, uplink/server/
+  GPS/OBD diagnostics, and quick actions (test server, sync now, reconnect uplink, restart app).
+- **Offline-first alerts** — notification bell on every page for check-engine, storage pressure,
+  upload backlog, temperature/power faults, and GPS loss while moving. Optional ntfy push.
+- **Reverse geocoding** — `/api/geocode` uses `reverse_geocoder` offline (no internet needed),
+  upgrades to Nominatim street-level when online. LRU-cached. Results pre-loaded for trip scrubbing.
+- **Offline web UI** — Flask, Bootstrap 5, Socket.IO, Chart.js, Leaflet. All assets served
+  locally. Responsive with collapsible sidebar and mobile bottom nav.
+- **Headless deployment** — systemd service with auto-restart, 10-second hardware watchdog, and
+  nftables port-80 redirect. Deploy scripts in `deploy/`.
 
 ## Hardware