Switch repo to English, add i18n with EN/DE language files and first-start language selection

- in-game texts moved to lang/en.lang and lang/de.lang (key = text, placeholders)
- game logic emits message keys + args, translated at display time
- localStorage access via own miniquad JS plugin (www/dc_plugin.js)
- code comments, DESIGN.md, CREDITS.md translated; README.md added

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

lang/de.lang

@@ -0,0 +1,199 @@
+# DungeonCraft Sprachdatei: Deutsch
+# Format: key = Text   Platzhalter: {0}, {1}, ...   Zeilen mit # sind Kommentare.
+
+lang.name = Deutsch
+
+# ---- Einheiten
+unit.worker = Grubenwicht
+unit.kobold = Kobold
+unit.spider = Höhlenspinne
+unit.mage = Schattenmagier
+unit.ogre = Steinoger
+unit.knight = Ritter
+unit.archer = Bogenschützin
+unit.priest = Priester
+unit.dwarf = Zwergenhauer
+unit.paladin = Lichtpaladin
+
+# ---- Räume
+room.treasury = Schatzkammer
+room.lair = Quartier
+room.farm = Pilzgarten
+room.training = Trainingshalle
+room.library = Bibliothek
+
+# ---- Tätigkeiten
+job.none = Überlegt
+job.dig = Gräbt
+job.claim = Erobert Boden
+job.deliver = Bringt Gold zur Schatzkammer
+job.wander = Streift umher
+job.sleep_go = Geht schlafen
+job.sleep = Schläft
+job.eat = Isst
+job.train = Trainiert
+job.study = Studiert
+job.fight = Kämpft
+job.core_attack = Greift den Seelenkern an
+job.core_march = Marschiert zum Seelenkern
+job.leave = Verlässt das Reich
+job.gate_attack = Greift das Heldentor an
+job.rally = Folgt der Angriffsflagge
+
+# ---- Meldungen
+msg.welcome1 = Willkommen, Herrscher des Unterreichs! Beschütze deinen Seelenkern und zerstöre das Heldentor.
+msg.welcome2 = Markiere Erde und Goldadern mit dem Werkzeug »Graben« (Taste 1). Deine Grubenwichte erledigen den Rest.
+msg.welcome3 = Grabe dich zum Portal durch und erobere es. Kreaturen brauchen ein Quartier und einen Pilzgarten.
+msg.welcome4 = Mit der Angriffsflagge (Taste 9) schickst du deine Kreaturen in den Kampf, auch gegen das Heldentor.
+msg.wave_warn = Späher melden: Welle {0} der Helden erreicht in 30 Sekunden das Tor!
+msg.defeat = Dein Seelenkern ist zerbrochen. Das Unterreich ist verloren.
+msg.victory = Das Heldentor ist zerstört. Das Unterreich gehört dir!
+msg.creature_arrived = Ein {0} ist durch das Portal gekommen.
+msg.payday_partial = Zahltag! {0} Kreaturen bezahlt ({1} Gold), {2} gingen leer aus und sind wütend!
+msg.payday = Zahltag! {0} Kreaturen erhielten {1} Gold.
+msg.wave_boss = Welle {0}: Ein Lichtpaladin führt {1} Helden in dein Reich!
+msg.wave = Welle {0}: {1} Helden dringen durch das Tor!
+msg.gate_boss = Das Tor wankt! Der Torwächter erscheint mit {0} Verteidigern!
+msg.gate_defenders = Das Tor ruft {0} Verteidiger herbei!
+msg.level_up = {0} erreicht Stufe {1}.
+msg.hero_slain = {0} besiegt! Beute: {1} Gold.
+msg.creature_died = Dein {0} ist gefallen.
+msg.portal_claimed = Das Portal gehört nun dir! Kreaturen werden davon angelockt.
+msg.flag_removed = Angriffsflagge entfernt. Deine Kreaturen kehren zurück.
+msg.flag_set = Angriffsflagge gesetzt! Kampfbereite Kreaturen sammeln sich dort.
+msg.creature_leaves = Ein unzufriedener {0} verlässt dein Reich!
+msg.no_gold = Nicht genug Gold!
+msg.sold = Räume verkauft: +{0} Gold.
+msg.no_mana_bolt = Nicht genug Mana für den Blitz.
+msg.no_mana_heal = Nicht genug Mana für die Heilung.
+msg.no_mana_cost = Nicht genug Mana ({0} benötigt).
+
+# ---- Hinweise (höchstens alle 30 Sekunden)
+hint.portal_no_lair = Das Portal ist offen, aber ohne Quartier kommen keine Kreaturen.
+hint.no_farm = Kreaturen wollen essen: Baue einen Pilzgarten.
+hint.lair_full = Alle Quartierplätze sind belegt. Vergrößere dein Quartier.
+hint.gate_attack = Deine Kreaturen greifen das Heldentor an!
+hint.treasury_full = Deine Schatzkammern sind voll! Baue mehr Schatzkammer-Felder.
+hint.flag_unreachable = Die Angriffsflagge ist für deine Kreaturen nicht erreichbar.
+hint.flag_ground = Die Flagge muss auf begehbarem Boden stehen.
+hint.no_beds = Kreaturen müssen auf dem nackten Boden schlafen. Vergrößere dein Quartier!
+hint.hungry = Deine Kreaturen hungern! Vergrößere den Pilzgarten.
+hint.core_attacked = Dein Seelenkern wird angegriffen!
+hint.build_where = Räume können nur auf eroberten, leeren Bodenfeldern gebaut werden.
+hint.hand_full = Deine Hand ist voll (max. 8). Rechtsklick lässt Einheiten fallen.
+hint.drop_where = Einheiten können nur auf eigenem Gebiet abgesetzt werden.
+hint.summon_where = Grubenwichte können nur auf eigenem Gebiet beschworen werden.
+
+# ---- Werkzeuge
+tool.dig.label = Graben
+tool.dig.name = Graben
+tool.dig.desc = Erde und Gold markieren. Ziehen für Rechteck; auf markiertem Feld beginnen hebt Markierung auf.
+tool.hand.label = Hand
+tool.hand.name = Hand
+tool.hand.desc = Eigene Einheit aufnehmen (max. 8). Rechtsklick setzt sie auf eigenem Gebiet ab.
+tool.treasury.label = Schatz
+tool.treasury.desc = Lagert Gold: +500 Kapazität pro Feld.
+tool.lair.label = Quartier
+tool.lair.desc = Ein Schlafplatz pro Feld. Bestimmt, wie viele Kreaturen kommen.
+tool.farm.label = Pilze
+tool.farm.desc = Nahrung für Kreaturen. Ab 6 Feldern kommen Höhlenspinnen.
+tool.training.label = Training
+tool.training.desc = Kreaturen steigen Stufen auf (kostet Gold). Ab 9 Feldern kommen Steinoger.
+tool.library.label = Bücher
+tool.library.desc = Kreaturen erzeugen Mana. Ab 6 Feldern kommen Schattenmagier.
+tool.sell.label = Verkauf
+tool.sell.name = Verkaufen
+tool.sell.desc = Räume zurück in Boden verwandeln (50 % Erstattung).
+tool.flag.label = Flagge
+tool.flag.name = Angriffsflagge
+tool.flag.desc = Kampfbereite Kreaturen sammeln sich hier. Nahe am Heldentor greifen sie es an. Erneut klicken entfernt sie.
+tool.lightning.label = Blitz
+tool.lightning.name = Blitz
+tool.lightning.desc = 55 Schaden an Helden im Umkreis.
+tool.heal.label = Heilung
+tool.heal.name = Heilung
+tool.heal.desc = Heilt eigene Einheiten im Umkreis um 50 %.
+tool.summon.label = Wicht
+tool.summon.name = Grubenwicht beschwören
+tool.summon.desc = Erschafft einen neuen Grubenwicht auf eigenem Gebiet.
+cost.gold_tile = {0} Gold/Feld
+cost.mana = {0} Mana
+ui.cost = Kosten: {0}
+ui.key = Taste: {0}
+
+# ---- Anzeige
+hud.gold = Gold
+hud.mana = Mana
+hud.core = Kern
+hud.gate = Tor
+hud.creatures = Kreaturen
+hud.workers = Wichte
+hud.wave = Welle {0}
+hud.army = Armee
+hud.off = aus
+hud.hand = Hand
+hud.empty = leer
+ui.map = Karte
+ui.pause = PAUSE
+ui.pause_hint = P: weiter
+
+# ---- Hilfe
+help.goal = Ziel: Zerstöre das Heldentor und schütze deinen Seelenkern.
+help.k_left = Linksklick       Werkzeug benutzen (Graben/Räume: Rechteck ziehen)
+help.k_right = Rechtsklick      Einheit aus der Hand absetzen
+help.k_pan = Rechts ziehen    Karte verschieben (auch WASD/Pfeile, Bildrand)
+help.k_rot = Mitte ziehen     Kamera drehen und neigen (auch Q/E, R/F)
+help.k_zoom = Mausrad          Zoomen
+help.k_tools = 1-9, 0, X, V     Werkzeug wählen
+help.k_misc = P / Leertaste    Pause      M  Ton an/aus   +/-  Lautstärke
+help.k_misc2 = G                Kachel-Umrisse an/aus     H  Diese Hilfe
+help.s1 = 1. Grabe zum Portal und lass es von Grubenwichten erobern.
+help.s2 = 2. Baue Quartier, Pilzgarten und Schatzkammer.
+help.s3 = 3. Trainiere deine Kreaturen, zahle ihren Lohn pünktlich.
+help.s4 = 4. Wehre die Heldenwellen ab. Sie passen sich deiner Armee an.
+help.s5 = 5. Setze die Angriffsflagge nahe ans Tor und greife an!
+help.font = Schrift: DINOBYTE von mby (CC BY 4.0)
+help.start = Klick zum Starten
+
+# ---- Spielende
+end.victory = SIEG!
+end.defeat = NIEDERLAGE
+end.victory_sub = Das Heldentor ist gefallen.
+end.defeat_sub = Dein Seelenkern ist zerbrochen.
+end.stats = Spielzeit {0}   Wellen {1}   Armee {2}
+end.new = Neues Spiel (N)
+
+# ---- Infofeld
+info.level = {0} (Stufe {1})
+info.hp = HP {0}/{1}
+info.guard = Torwächter
+info.intruder = Eindringling
+info.needs = Energie {0}%  Hunger {1}%
+info.mood = Laune: {0}
+mood.happy = zufrieden
+mood.grumpy = mürrisch
+mood.angry = wütend
+info.wage = Lohn: {0} Gold
+info.carries = Trägt {0} Gold
+tile.rock = Fels
+tile.indestructible = unzerstörbar
+tile.earth = Erde
+tile.gold = Goldader
+tile.gold_amount = {0} Gold
+tile.floor = Boden
+owner.player = erobert
+owner.hero = Heldengebiet
+owner.none = neutral
+tile.core = Seelenkern
+tile.portal = Portal
+portal.claimed = erobert
+portal.neutral = neutral: Wichte können es erobern
+tile.gate = Heldentor
+farm.food = {0} Pilze
+lair.taken = Schlafplatz belegt
+lair.free = Schlafplatz frei
+tile.marked = zum Graben markiert
+
+# ---- Sprachauswahl
+langsel.title = Sprache
+langsel.hint = Klicke eine Sprache an. Du kannst sie später in den Einstellungen ändern.

lang/en.lang

@@ -0,0 +1,200 @@
+# DungeonCraft language file: English (reference language)
+# Format: key = text   Placeholders: {0}, {1}, ...   Lines starting with # are comments.
+# To add a language: copy this file, translate the texts and register it in src/i18n.rs.
+
+lang.name = English
+
+# ---- units
+unit.worker = Pit Imp
+unit.kobold = Kobold
+unit.spider = Cave Spider
+unit.mage = Shadow Mage
+unit.ogre = Stone Ogre
+unit.knight = Knight
+unit.archer = Archer
+unit.priest = Priest
+unit.dwarf = Dwarf Miner
+unit.paladin = Paladin of Light
+
+# ---- rooms
+room.treasury = Treasury
+room.lair = Lair
+room.farm = Mushroom Garden
+room.training = Training Hall
+room.library = Library
+
+# ---- jobs
+job.none = Thinking
+job.dig = Digging
+job.claim = Claiming ground
+job.deliver = Carrying gold to the treasury
+job.wander = Wandering
+job.sleep_go = Going to sleep
+job.sleep = Sleeping
+job.eat = Eating
+job.train = Training
+job.study = Studying
+job.fight = Fighting
+job.core_attack = Attacking the Soul Core
+job.core_march = Marching to the Soul Core
+job.leave = Leaving the realm
+job.gate_attack = Attacking the Hero Gate
+job.rally = Following the attack flag
+
+# ---- messages
+msg.welcome1 = Welcome, ruler of the underworld! Protect your Soul Core and destroy the Hero Gate.
+msg.welcome2 = Mark earth and gold veins with the Dig tool (key 1). Your Pit Imps do the rest.
+msg.welcome3 = Dig through to the portal and claim it. Creatures need a lair and a mushroom garden.
+msg.welcome4 = Use the attack flag (key 9) to send your creatures into battle, even against the Hero Gate.
+msg.wave_warn = Scouts report: hero wave {0} reaches the gate in 30 seconds!
+msg.defeat = Your Soul Core has shattered. The underworld is lost.
+msg.victory = The Hero Gate is destroyed. The underworld is yours!
+msg.creature_arrived = A {0} came through the portal.
+msg.payday_partial = Payday! {0} creatures paid ({1} gold), {2} got nothing and are angry!
+msg.payday = Payday! {0} creatures received {1} gold.
+msg.wave_boss = Wave {0}: a Paladin of Light leads {1} heroes into your realm!
+msg.wave = Wave {0}: {1} heroes break through the gate!
+msg.gate_boss = The gate is crumbling! The Gate Warden appears with {0} defenders!
+msg.gate_defenders = The gate summons {0} defenders!
+msg.level_up = {0} reaches level {1}.
+msg.hero_slain = {0} defeated! Loot: {1} gold.
+msg.creature_died = Your {0} has fallen.
+msg.portal_claimed = The portal is yours! It attracts creatures.
+msg.flag_removed = Attack flag removed. Your creatures return.
+msg.flag_set = Attack flag set! Battle-ready creatures gather there.
+msg.creature_leaves = An unhappy {0} leaves your realm!
+msg.no_gold = Not enough gold!
+msg.sold = Rooms sold: +{0} gold.
+msg.no_mana_bolt = Not enough mana for Lightning.
+msg.no_mana_heal = Not enough mana for Heal.
+msg.no_mana_cost = Not enough mana ({0} needed).
+
+# ---- hints (shown at most every 30 seconds)
+hint.portal_no_lair = The portal is open, but without a lair no creatures will come.
+hint.no_farm = Creatures want to eat: build a mushroom garden.
+hint.lair_full = All beds in the lair are taken. Enlarge your lair.
+hint.gate_attack = Your creatures are attacking the Hero Gate!
+hint.treasury_full = Your treasuries are full! Build more treasury tiles.
+hint.flag_unreachable = Your creatures cannot reach the attack flag.
+hint.flag_ground = The flag must be placed on walkable ground.
+hint.no_beds = Creatures have to sleep on bare ground. Enlarge your lair!
+hint.hungry = Your creatures are starving! Enlarge the mushroom garden.
+hint.core_attacked = Your Soul Core is under attack!
+hint.build_where = Rooms can only be built on claimed, empty floor tiles.
+hint.hand_full = Your hand is full (max. 8). Right-click drops units.
+hint.drop_where = Units can only be dropped on your own territory.
+hint.summon_where = Pit Imps can only be summoned on your own territory.
+
+# ---- tools (label = short text under the button)
+tool.dig.label = Dig
+tool.dig.name = Dig
+tool.dig.desc = Mark earth and gold. Drag for a rectangle; starting on a marked tile removes the marks.
+tool.hand.label = Hand
+tool.hand.name = Hand
+tool.hand.desc = Pick up one of your units (max. 8). Right-click drops it on your own territory.
+tool.treasury.label = Treasury
+tool.treasury.desc = Stores gold: +500 capacity per tile.
+tool.lair.label = Lair
+tool.lair.desc = One bed per tile. Determines how many creatures come.
+tool.farm.label = Mushrooms
+tool.farm.desc = Food for creatures. With 6 tiles or more, cave spiders come.
+tool.training.label = Training
+tool.training.desc = Creatures gain levels (costs gold). With 9 tiles or more, stone ogres come.
+tool.library.label = Library
+tool.library.desc = Creatures generate mana. With 6 tiles or more, shadow mages come.
+tool.sell.label = Sell
+tool.sell.name = Sell
+tool.sell.desc = Turn rooms back into floor (50% refund).
+tool.flag.label = Flag
+tool.flag.name = Attack Flag
+tool.flag.desc = Battle-ready creatures gather here. Near the Hero Gate they attack it. Click again to remove it.
+tool.lightning.label = Lightning
+tool.lightning.name = Lightning
+tool.lightning.desc = 55 damage to heroes in the area.
+tool.heal.label = Heal
+tool.heal.name = Heal
+tool.heal.desc = Heals your units in the area by 50%.
+tool.summon.label = Imp
+tool.summon.name = Summon Pit Imp
+tool.summon.desc = Creates a new Pit Imp on your own territory.
+cost.gold_tile = {0} gold/tile
+cost.mana = {0} mana
+ui.cost = Cost: {0}
+ui.key = Key: {0}
+
+# ---- HUD
+hud.gold = Gold
+hud.mana = Mana
+hud.core = Core
+hud.gate = Gate
+hud.creatures = Creatures
+hud.workers = Imps
+hud.wave = Wave {0}
+hud.army = Army
+hud.off = off
+hud.hand = Hand
+hud.empty = empty
+ui.map = Map
+ui.pause = PAUSE
+ui.pause_hint = P: continue
+
+# ---- help
+help.goal = Goal: destroy the Hero Gate and protect your Soul Core.
+help.k_left = Left click      Use tool (dig/rooms: drag a rectangle)
+help.k_right = Right click     Drop a unit from your hand
+help.k_pan = Right drag      Move the map (also WASD/arrows, screen edge)
+help.k_rot = Middle drag     Rotate and tilt the camera (also Q/E, R/F)
+help.k_zoom = Mouse wheel     Zoom
+help.k_tools = 1-9, 0, X, V    Select tool
+help.k_misc = P / Space       Pause      M  Sound on/off   +/-  Volume
+help.k_misc2 = G               Tile outlines on/off     H  This help
+help.s1 = 1. Dig to the portal and let your Pit Imps claim it.
+help.s2 = 2. Build a lair, a mushroom garden and a treasury.
+help.s3 = 3. Train your creatures and pay their wages on time.
+help.s4 = 4. Fend off the hero waves. They adapt to your army.
+help.s5 = 5. Place the attack flag near the gate and attack!
+help.font = Font: DINOBYTE by mby (CC BY 4.0)
+help.start = Click to start
+
+# ---- end screen
+end.victory = VICTORY!
+end.defeat = DEFEAT
+end.victory_sub = The Hero Gate has fallen.
+end.defeat_sub = Your Soul Core has shattered.
+end.stats = Time {0}   Waves {1}   Army {2}
+end.new = New Game (N)
+
+# ---- info panel
+info.level = {0} (level {1})
+info.hp = HP {0}/{1}
+info.guard = Gate Warden
+info.intruder = Intruder
+info.needs = Energy {0}%  Hunger {1}%
+info.mood = Mood: {0}
+mood.happy = content
+mood.grumpy = grumpy
+mood.angry = angry
+info.wage = Wage: {0} gold
+info.carries = Carries {0} gold
+tile.rock = Rock
+tile.indestructible = indestructible
+tile.earth = Earth
+tile.gold = Gold Vein
+tile.gold_amount = {0} gold
+tile.floor = Floor
+owner.player = claimed
+owner.hero = hero territory
+owner.none = neutral
+tile.core = Soul Core
+tile.portal = Portal
+portal.claimed = claimed
+portal.neutral = neutral: imps can claim it
+tile.gate = Hero Gate
+farm.food = {0} mushrooms
+lair.taken = Bed taken
+lair.free = Bed free
+tile.marked = marked for digging
+
+# ---- language selection
+langsel.title = Language
+langsel.hint = Click a language. You can change it later in the settings.