feat: 积分流水互转合并展示，并优化个人主页与经济看板

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/app/globals.css

@@ -32,6 +32,18 @@
   --ok: #137333;
   --ok-soft: rgba(19, 115, 51, 0.1);
 
+  /* 积分看板最近流水：金额与类型标签 */
+  --ledger-in: #16a34a;
+  --ledger-out: #dc2626;
+  --ledger-checkin-bg: #dcfce7;
+  --ledger-checkin-fg: #15803d;
+  --ledger-bounty-bg: #ffedd5;
+  --ledger-bounty-fg: #c2410c;
+  --ledger-file-bg: #dbeafe;
+  --ledger-file-fg: #1d4ed8;
+  --ledger-typed-bg: #f3e8ff;
+  --ledger-typed-fg: #7e22ce;
+
   /* 工作台语义：导航选中态 / 榜单奖牌色 */
   --nav-active-bg: var(--accent-soft);
   --nav-active-ink: var(--accent);
@@ -94,6 +106,17 @@
   --ok: #58d18a;
   --ok-soft: rgba(88, 209, 138, 0.15);
 
+  --ledger-in: #4ade80;
+  --ledger-out: #f87171;
+  --ledger-checkin-bg: rgba(22, 163, 74, 0.22);
+  --ledger-checkin-fg: #86efac;
+  --ledger-bounty-bg: rgba(194, 65, 12, 0.28);
+  --ledger-bounty-fg: #fdba74;
+  --ledger-file-bg: rgba(29, 78, 216, 0.28);
+  --ledger-file-fg: #93c5fd;
+  --ledger-typed-bg: rgba(126, 34, 206, 0.28);
+  --ledger-typed-fg: #e9d5ff;
+
   /* 工作台语义 */
   --nav-active-bg: rgba(141, 163, 255, 0.14);
   --nav-active-ink: #a9b8ff;
@@ -3112,6 +3135,75 @@ a.j13-mention-token:hover {
     color: var(--accent);
   }
 
+  .ledger-feed {
+    max-width: 1000px;
+  }
+  .ledger-row {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    height: 64px;
+    padding: 12px 20px;
+    border-top: 1px solid var(--line);
+  }
+  .ledger-row:first-child {
+    border-top: none;
+  }
+  .ledger-kind-icon {
+    width: 30px;
+    height: 30px;
+    border-radius: 999px;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    flex-shrink: 0;
+    font-size: 14px;
+    line-height: 1;
+  }
+  .ledger-kind-tag {
+    font-size: 11px;
+    padding: 2px 8px;
+    border-radius: 4px;
+    font-weight: 500;
+    line-height: 1.4;
+    white-space: nowrap;
+    flex-shrink: 0;
+  }
+  .ledger-kind-icon.is-checkin,
+  .ledger-kind-tag.is-checkin {
+    background: var(--ledger-checkin-bg);
+    color: var(--ledger-checkin-fg);
+  }
+  .ledger-kind-icon.is-bounty,
+  .ledger-kind-tag.is-bounty {
+    background: var(--ledger-bounty-bg);
+    color: var(--ledger-bounty-fg);
+  }
+  .ledger-kind-icon.is-file,
+  .ledger-kind-tag.is-file {
+    background: var(--ledger-file-bg);
+    color: var(--ledger-file-fg);
+  }
+  .ledger-kind-icon.is-typed,
+  .ledger-kind-tag.is-typed {
+    background: var(--ledger-typed-bg);
+    color: var(--ledger-typed-fg);
+  }
+  .ledger-kind-icon.is-system,
+  .ledger-kind-tag.is-system {
+    background: var(--tint);
+    color: var(--ink-2);
+  }
+  .ledger-amount {
+    width: 80px;
+    flex-shrink: 0;
+    text-align: right;
+    font-size: 15px;
+    font-weight: 600;
+    font-variant-numeric: tabular-nums;
+    line-height: 1.2;
+  }
+
   .admin-toolbar {
     display: flex;
     flex-direction: column;