Translate dialogue batch 12: Museum + Slate (Hearthian villagers)

Start the Hearthian villager category. 100 lines: the museum signs and
exhibits (radio tower, deep space satellite, museum expansion) and Slate
the shipbuilder's entire launch-day conversation -- the ship, launch
codes, ship-log destination markers, marshmallows, and Slate's gruff,
sarcastic jabs.

First use of "mláďa" (Hatchling, 673). Player addressed informally (ty);
"Stars above" -> "Hviezdy nad nami"; Hearthian names kept (Slate,
Hornfels, Gossan, Hal, Mica). Preserved <i> emphases and \n / \n\n tokens.

Verified: XML well-formed; keys identical; markup/token parity; ship log/
UI/rest byte-unchanged; mod builds. (588 "Slate" intentionally unchanged.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

PLAN.md

@@ -148,8 +148,14 @@ text walls, `<table_shipLog>` = ship log, `<table_ui>` = UI/menus):
     Clem, Hyssop, Neem, Escall, Filix, Din). Distant place names translated
     (*Súmračná galaxia*, *Čierna skala*, *Jasná iskra*) and flagged.
   - **Nomai dialogue: ✅ complete.** Remaining dialogue is the ~1725
-    Hearthian/player lines (villagers, the travelers, player-facing/system text),
-    where *mláďa* comes into play.
+    Hearthian/player lines (villagers, the travelers, player-facing/system text).
+  - **Hearthian villagers — 🚧 started.**
+    - **Batch 12 — Museum + Slate (100 lines) ✅** — the museum signs/exhibits
+      and Slate the shipbuilder's whole launch-day conversation (ship, launch
+      codes, ship-log markers, marshmallows, his jabs). First use of **mláďa**
+      (Hatchling). Player addressed as *ty*; "Stars above" → *Hviezdy nad nami*;
+      Hearthian names kept (Slate, Hornfels, Gossan, Hal, Mica). The interleaved
+      village dialogue continues (Hornfels, Gossan, Hal, the kids, other NPCs).
 
 Terminology change (applied file-wide): **Black Hole Forge → Kováreň čiernych
 dier** (was *Zlieváreň čiernej diery*) — 15 occurrences across ship log + dialogue.