feat(ui): treat transparent addresses as mining-only addresses

DragonX is a private chain (-ac_private=1): consensus rejects any
non-coinbase output to a transparent address, so a t-address can only
ever receive mining rewards, and its coins can only move to a shielded
address. The wallet treated them like ordinary recipients.

Block paying one:
- Send: a transparent recipient shows "Mining address - can't be paid"
  and disables Review Send (tooltip explains; ask for a zs... address).
  Typing, paste, contacts and payment URIs all go through this field.
- Overview drag-to-transfer: a mining-address row is never a transfer
  target (it only reorders).
- Pool payout must be shielded (pools pay with ordinary transactions):
  field tooltip, disabled Start button and the start check say why.
- isValidRecipientAddress() is now shielded-only; new isDragonXAddress()
  and classifyRecipient() (Shielded / MiningOnly / Invalid).

Call them mining addresses:
- Overview: "Mining rewards" card (amber "Not yet shielded" when there
  is a balance; hover explains; click opens the Shield dialog), "New
  mining address" button with a tooltip, rows typed "Mining".
- QR / label dialogs, portfolio filter, contact badge ("Mining only"),
  Receive notifications.

i18n: 17 new keys in all 8 languages, 12 dead keys removed, CJK subset
rebuilt. Tests: recipient classification, translation completeness.
UI sweep: new "send-mining-recipient" target.

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

res/lang/zh.json

@@ -25,6 +25,7 @@
     "about_website": "网站",
     "acrylic": "亚克力",
     "add": "添加",
+    "addr_type_mining": "挖矿",
     "address": "地址",
     "address_book_add": "添加地址",
     "address_book_add_new": "添加新地址",
@@ -172,21 +173,20 @@
     "balance_history_collecting": "余额历史——正在收集数据…",
     "balance_layout": "余额布局",
     "balance_layout_switched": "布局：%s",
+    "balance_mining_fmt": "挖矿奖励：%.8f",
     "balance_mining_rate": "挖矿中 %s",
     "balance_shielded_fmt": "屏蔽：%.8f",
     "balance_syncing_pct": "同步中 %.1f%%",
-    "balance_transparent_fmt": "透明：%.8f",
     "baltab_market": "市价",
     "baltab_market_price_4dp": "市价：$%.4f",
     "baltab_market_price_8dp": "市价：$%.8f",
+    "baltab_mining_addresses_count": "%d 个挖矿地址",
+    "baltab_mining_amount": "挖矿奖励  %.8f",
     "baltab_pct_change_24h": "%s%.1f%% 24小时",
     "baltab_pct_of_total_zaddr": "占总额 %.0f%%  ·  %d 个 Z-addr",
     "baltab_shielded": "隐蔽",
     "baltab_shielded_amount": "隐蔽  %.8f",
-    "baltab_t_addresses_count": "%d 个 T-address",
     "baltab_total_balance": "总余额",
-    "baltab_transparent": "透明",
-    "baltab_transparent_amount": "透明  %.8f",
     "ban": "封禁",
     "banned_peers": "已封禁节点",
     "block": "区块",
@@ -511,7 +511,7 @@
     "contact_avatar_image_hint": "图片会复制到应用中，即使原文件移动也能保持可用。",
     "contact_avatar_remove": "移除",
     "contact_avatar_shielded": "隐蔽",
-    "contact_avatar_transparent": "透明",
+    "contact_chip_mining": "仅限挖矿",
     "contact_global": "在每个钱包中显示（全局联系人）",
     "contact_global_badge_tt": "全局联系人——在每个钱包中可见",
     "contact_global_tt": "开启：无论您加载哪个钱包，此联系人都保持可见。关闭：它仅属于当前钱包。",
@@ -707,8 +707,8 @@
     "export_tx_success": "交易导出成功",
     "export_tx_title": "导出交易到 CSV",
     "export_viewing_key": "导出查看密钥",
+    "failed_create_mining_address": "创建挖矿地址失败",
     "failed_create_shielded": "无法创建屏蔽地址",
-    "failed_create_transparent": "无法创建透明地址",
     "faq": "常见问题",
     "faq_d_mgmt_1_a": "内置节点会随钱包自动启动，并在适当时机停止，因此通常无需手动管理。高级控制选项（包括重启守护进程）位于 设置 > 节点与安全。",
     "faq_d_mgmt_1_q": "如何启动或停止节点？",
@@ -1226,6 +1226,7 @@
     "miner_fee": "矿工费",
     "mining": "挖矿",
     "mining_active": "活跃",
+    "mining_address": "挖矿地址",
     "mining_address_copied": "挖矿地址已复制",
     "mining_all_time": "所有时间",
     "mining_already_saved": "矿池 URL 已保存",
@@ -1239,6 +1240,8 @@
     "mining_benchmark_testing": "测试中",
     "mining_benchmark_tooltip": "为此 CPU 找到最佳线程数",
     "mining_block_copied": "区块哈希已复制",
+    "mining_card_click_to_shield": "点击立即屏蔽已成熟的奖励。",
+    "mining_card_tooltip": "单人挖矿奖励会发送到您的挖矿（透明，R…）地址。这些地址无法接收付款。奖励成熟后会自动屏蔽。",
     "mining_chart_1m_ago": "1分钟前",
     "mining_chart_5m_ago": "5分钟前",
     "mining_chart_now": "现在",
@@ -1283,6 +1286,7 @@
     "mining_payout_address": "支付地址",
     "mining_payout_foreign": "⚠ 此支付地址不在您当前的钱包中——挖矿奖励将进入另一个钱包。如果您切换过钱包，请更新它。",
     "mining_payout_invalid": "不是有效的 DragonX 地址——启动前请更正，否则挖矿奖励将丢失。",
+    "mining_payout_needs_shielded": "矿池使用普通交易付款，而在 DragonX 上普通交易无法到达挖矿（透明，R…）地址。请使用屏蔽地址（以 zs 开头）作为收款地址。",
     "mining_payout_tooltip": "接收挖矿奖励的地址",
     "mining_pool": "矿池",
     "mining_pool_fee": "费用",
@@ -1295,6 +1299,8 @@
     "mining_refresh": "刷新",
     "mining_remove": "移除",
     "mining_reset_defaults": "重置默认值",
+    "mining_rewards": "挖矿奖励",
+    "mining_rewards_unshielded": "尚未屏蔽",
     "mining_save_payout_address": "保存支付地址",
     "mining_save_pool_url": "保存矿池 URL",
     "mining_saved_addresses": "已保存地址：",
@@ -1328,10 +1334,10 @@
     "network_fee": "网络手续费",
     "network_hashrate": "全网算力",
     "new": "+ 新建",
+    "new_mining_address": "新建挖矿地址",
+    "new_mining_address_created": "已创建新的挖矿地址",
     "new_shielded_created": "新屏蔽地址已创建",
-    "new_t_address": "新 T 地址",
     "new_t_transparent": "新 t 地址（透明）",
-    "new_transparent_created": "新透明地址已创建",
     "new_z_address": "新 Z 地址",
     "new_z_shielded": "新 z 地址（屏蔽）",
     "no_addresses": "未找到地址。请使用上方按钮创建一个。",
@@ -1696,6 +1702,8 @@
     "send_from_this_address": "从此地址发送",
     "send_go_to_receive": "前往接收",
     "send_keep": "保留",
+    "send_mining_addr_blocked": "这是一个挖矿（透明）地址。在 DragonX 上，这类地址只能接收挖矿奖励——网络会拒绝向其付款。请向收款人索取屏蔽地址（以 zs 开头）。",
+    "send_mining_addr_short": "挖矿地址——无法接收付款",
     "send_network_fee": "网络手续费",
     "send_no_balance": "无余额",
     "send_no_recent": "没有最近的发送",
@@ -1723,7 +1731,6 @@
     "send_txid_copied": "交易ID 已复制到剪贴板",
     "send_txid_label": "TxID：%s",
     "send_valid_shielded": "有效的屏蔽地址",
-    "send_valid_transparent": "有效的透明地址",
     "send_wallet_empty": "您的钱包是空的",
     "send_yes_clear": "是，清除",
     "sender_balance": "发送方: %.8f → %.8f DRGX",
@@ -1929,7 +1936,6 @@
     "switch_stopnode_title": "停止正在运行的节点？",
     "switch_stopnode_warn": "已有一个并非由此钱包启动的节点正在运行。",
     "syncing": "同步中...",
-    "t_address": "T 地址",
     "t_addresses": "T 地址",
     "test_connection": "测试",
     "theme": "主题",
@@ -1964,8 +1970,6 @@
     "transfer_sent": "转账已发送",
     "transfer_sent_desc": "您的转账已提交到网络。",
     "transfer_to": "转账至：",
-    "transparent": "透明",
-    "transparent_address": "透明地址",
     "try_again": "重试",
     "tt_addr_url": "在区块浏览器中查看地址的基础 URL",
     "tt_address_book": "管理已保存的地址以快速发送",
@@ -2037,6 +2041,7 @@
     "tt_low_spec": "禁用所有重度视觉效果\\n快捷键：Ctrl+Shift+Down",
     "tt_merge": "将多个 UTXO 合并到一个地址",
     "tt_mine_idle": "系统空闲时自动开始挖矿\\n（无键盘/鼠标输入）",
+    "tt_new_mining_address": "创建一个用于单人挖矿奖励的透明（R…）地址。它无法接收付款——收款请提供屏蔽地址。",
     "tt_noise": "颗粒纹理强度（0% = 关闭，100% = 最大）",
     "tt_open_app_dir": "在文件管理器中打开 ObsidianDragon 文件夹（设置、主题、日志）",
     "tt_open_data_dir": "在文件管理器中打开包含您钱包和区块链数据的文件夹",