docs: bold feature names, clean up readme

readme.md

@@ -32,30 +32,30 @@ Dashboard — mobile (390 px) and desktop (1280 px):
 
 ## Features
 
-- Live OBD-II data over a cheap USB ELM327-compatible adapter: speed, RPM, coolant
+- **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
+- **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,
+- **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,
+- **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,
+- **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
+- **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:
+- **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
@@ -65,29 +65,29 @@ Dashboard — mobile (390 px) and desktop (1280 px):
   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
+- **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
+- **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
+- **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,
+- **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,
+- **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
+- **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`
+- **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,
+- **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
+- **Headless Pi deployment** as a self-restarting `systemd` service with a 10-second BCM2835
   hardware watchdog, verified across a real reboot
 
 ## Hardware