Mod: mining rig, graphics cards, trading terminal, nightly settlement

First playable slice, tested in game on the test save:
- Network upgrade "Mining Access" (300) delivers a trading terminal, a
  mining rig and an RZX 50.
- The rig is a machine with a battery slot and four card slots; each night
  it draws its total power from the battery and its cards mine PSCoin.
  Cards show hashrate, power draw and condition, wear every night and can
  burn out. All state lives on item tags or in the mod save data.
- Trading terminal with wallet, trade (four pairs, deposit credits as CRC,
  withdraw CRC through the compliance desk) and report pages.
- Nightly log lines; exchange opening and halving news on the paper.
- English and Chinese text; sprites generated by art/sprites.py.

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

src/Decentralized/ModFiles/Localization/en.csv

@@ -0,0 +1,55 @@
+# Probably Decentralized localization table: English (en)
+# Source language and fallback. Format: key,text (text may be quoted; \n is a line break).
+upgrade.title,Mining Access
+upgrade.card,Mining
+upgrade.desc,Delivers a trading terminal and a mining rig to the back counter. Graphics cards installed in a rig mine PSCoin each night the rig has power.
+item.terminal.name,Trading Terminal
+item.terminal.desc,Wallet, exchange and the nightly mining report.
+item.rig.name,Mining Rig
+item.rig.desc,"Holds up to four graphics cards. Hashrate {0} MH/s. Draws {1} kJ per day."
+rig.label.cards,Graphics cards
+item.gpu.name,{0} {1}
+item.gpu.desc,"Hashrate {0} MH/s. Draws {1} kJ per day. Condition {2}%."
+item.gpu.burnt.name,Burnt {0} {1}
+item.gpu.burnt.desc,This card no longer works.
+term.title,Trading Terminal
+tab.wallet,Wallet
+tab.trade,Trade
+tab.report,Report
+wallet.line,"{0}: {1} (about {2} credits)"
+wallet.empty,The wallet is empty.
+wallet.total,Total value: {0} credits
+wallet.taint,Tainted value: {0} credits
+trade.amount,Amount
+trade.hint,Buy spends the amount in the quote coin. Sell sells the amount of the traded coin.
+trade.deposit,Deposit credits as CRC
+trade.withdraw,Withdraw CRC as credits
+trade.pair,"{0}/{1} ({2})"
+trade.price,Price {0}
+trade.buy,Buy
+trade.sell,Sell
+venue.Exchange,Exchange
+venue.Dex,DEX
+venue.Darknet,Darknet
+msg.amount,Enter an amount.
+msg.balance,Not enough balance.
+msg.trade,"Paid {0} {1}, received {2} {3}."
+msg.deposit,Deposited {0} credits as CRC.
+msg.cashout,"Received {0} credits. Tax {1} credits."
+msg.aml_light,Compliance review: {0} credits of tainted funds were withheld.
+msg.aml_heavy,Compliance review: {0} credits of tainted funds were seized and reported to Security.
+report.none,No mining report yet.
+report.day,Night of day {0}
+report.rigs,Rigs with power: {0} of {1}
+report.hash,"Hashrate: {0} MH/s (network {1} MH/s)"
+report.mined,"Mined: {0} PSC (about {1} credits)"
+report.energy,Energy used: {0} kJ
+report.burnt,Cards burnt out: {0}
+report.price,PSCoin price: {0} credits
+nightlog.mined,Mining rigs produced {0} PSC.
+nightlog.burnt,A {0} burnt out.
+nightlog.unpowered,{0} mining rig(s) had no power.
+news.open.title,PSCoin Exchange Opens
+news.open.desc,The Upper Level exchange now lists PSCoin against CRC. Graphics cards are in demand across the station.
+news.halving.title,PSCoin Block Reward Halved
+news.halving.desc,Miners now receive half as many coins per night.