Add IoM ferry file and Wild Atlantic Way EV charging guide

- New 03-iom-ferry.md: Steam Packet from Liverpool or Heysham, booking notes, EV on board
- WAW: full section-by-section EV charging table (Donegal to Kerry)
  Highlights the two critical gaps: Connemara (Clifden–Westport) and Donegal coast
  Adds ESB ecars/Zap-Map links and practical overnight charging tips

locations/03-iom-ferry.md

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+# Isle of Man Ferry
+
+> **Type:** Ferry logistics
+> **Route:** Liverpool or Heysham → Douglas, Isle of Man
+> **Operator:** Steam Packet Company
+
+## Port Options
+
+### Liverpool → Douglas
+- **Duration:** ~2.5h (fast craft) or ~3.5h (Ben-my-Chree ship)
+- **Departs from:** Pier Head, Liverpool (Princes Parade terminal)
+- **Best for:** If you're stopping in Liverpool anyway — walk on the ferry from the city waterfront
+
+### Heysham → Douglas
+- **Duration:** ~3.5h (Ben-my-Chree)
+- **Departs from:** Heysham Port, near Lancaster (M6 J34)
+- **Best for:** If skipping Liverpool; more frequent departures; quieter port
+
+**Recommendation:** Liverpool departure if you're spending a night there. Heysham if you want to go straight from the Lake District.
+
+## Booking
+- [steam-packet.com](https://www.steam-packet.com)
+- **Book in advance** — August sailings with a car fill up. The Ben-my-Chree (the main ship) has limited vehicle deck space.
+- Bring your booking confirmation — check-in closes 30–45 min before departure
+
+## EV on the Ferry
+- Drive your car onto the vehicle deck as normal
+- **No charging available on board** — arrive at port with enough charge to reach Douglas and your accommodation
+- Douglas is ~10 min from the ferry terminal; charge overnight at your hotel or the MEA chargers at the Sea Terminal car park
+
+## On Board
+- The Ben-my-Chree has a restaurant, lounge, and cabins (useful for the longer crossings)
+- Fast craft (Manannan) is quicker but less comfortable and weather-dependent
+
+## Links
+- [Steam Packet Company](https://www.steam-packet.com)
+- [Heysham Port info](https://www.steam-packet.com/travel-information/ports/heysham)
+- [Liverpool terminal info](https://www.steam-packet.com/travel-information/ports/liverpool)