fix: 公积金表单去掉多余的housingBaseMin/Max输入，只保留一套基数上下限

新架构下社保和公积金是不同账户，各自有独立的年度标准，
baseMin/baseMax 已各自独立，housingBaseMin/Max是旧架构遗留。
公积金表单标签改为"公积金基数下限/上限"，默认值改为2540/35811。

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

frontend/src/pages/social-insurance/AccountCard.tsx

@@ -45,7 +45,7 @@ export function AccountCard({
     medicalOrg: 9.8, medicalEmp: 2, medicalOrgExtra: 0, medicalEmpExtra: 0,
     unemploymentOrg: 0.5, unemploymentEmp: 0.5,
     injuryOrg: 0.2, maternityOrg: 0.8,
-    baseMin: 6326, baseMax: 33891,
+    baseMin: isHousing ? 2540 : 6326, baseMax: isHousing ? 35811 : 33891,
     medicalBaseMin: 0, medicalBaseMax: 0,
     minWage: 0,
     extraInsurances: [],
@@ -332,8 +332,8 @@ export function AccountCard({
                   )}
                   <div className="grid md:grid-cols-4 gap-3 text-sm">
                     <div className="flex justify-between border-b pb-1.5"><span className="text-gray-500">账户类型</span><span className="font-medium">{config.accountType === 'SUPPLEMENTARY' ? '补充公积金' : '基本公积金'}</span></div>
-                    <div className="flex justify-between border-b pb-1.5"><span className="text-gray-500">缴费基数下限</span><span className="font-medium">¥{fmt(config.housingBaseMin > 0 ? config.housingBaseMin : config.baseMin)}</span></div>
-                    <div className="flex justify-between border-b pb-1.5"><span className="text-gray-500">缴费基数上限</span><span className="font-medium">¥{fmt(config.housingBaseMax > 0 ? config.housingBaseMax : config.baseMax)}</span></div>
+                    <div className="flex justify-between border-b pb-1.5"><span className="text-gray-500">公积金基数下限</span><span className="font-medium">¥{fmt(config.housingBaseMin > 0 ? config.housingBaseMin : config.baseMin)}</span></div>
+                    <div className="flex justify-between border-b pb-1.5"><span className="text-gray-500">公积金基数上限</span><span className="font-medium">¥{fmt(config.housingBaseMax > 0 ? config.housingBaseMax : config.baseMax)}</span></div>
                     <div className="flex justify-between border-b pb-1.5"><span className="text-gray-500">公积金(企业)</span><span className="font-medium">{config.housingOrg}%</span></div>
                     <div className="flex justify-between border-b pb-1.5"><span className="text-gray-500">公积金(个人)</span><span className="font-medium">{config.housingEmp}%</span></div>
                   </div>
@@ -609,8 +609,8 @@ export function AccountCard({
                     <Input value={account.city} disabled className="bg-gray-50" />
                     <p className="text-xs text-gray-400 mt-1">从账户继承</p>
                   </div>
-                  <div><Label>缴费基数下限</Label><Input type="number" value={newVersion.baseMin} onChange={(e) => setNewVersion({ ...newVersion, baseMin: Number(e.target.value) })} /></div>
-                  <div><Label>缴费基数上限</Label><Input type="number" value={newVersion.baseMax} onChange={(e) => setNewVersion({ ...newVersion, baseMax: Number(e.target.value) })} /></div>
+                  <div><Label>{isHousing ? '公积金基数下限' : '缴费基数下限'}</Label><Input type="number" value={newVersion.baseMin} onChange={(e) => setNewVersion({ ...newVersion, baseMin: Number(e.target.value) })} /></div>
+                  <div><Label>{isHousing ? '公积金基数上限' : '缴费基数上限'}</Label><Input type="number" value={newVersion.baseMax} onChange={(e) => setNewVersion({ ...newVersion, baseMax: Number(e.target.value) })} /></div>
                 </div>
                 {!isHousing && (
                   <div className="grid md:grid-cols-2 gap-3">
@@ -647,8 +647,6 @@ export function AccountCard({
                       </div>
                       <div><Label>公积金(企业%)</Label><Input type="number" step="0.1" value={newVersion.housingOrg} onChange={(e) => setNewVersion({ ...newVersion, housingOrg: Number(e.target.value) })} /></div>
                       <div><Label>公积金(个人%)</Label><Input type="number" step="0.1" value={newVersion.housingEmp} onChange={(e) => setNewVersion({ ...newVersion, housingEmp: Number(e.target.value) })} /></div>
-                      <div><Label>公积金基数下限</Label><Input type="number" value={newVersion.housingBaseMin} onChange={(e) => setNewVersion({ ...newVersion, housingBaseMin: Number(e.target.value) })} placeholder="0=用社保下限" /><p className="text-xs text-gray-400 mt-1">0 时使用缴费基数下限</p></div>
-                      <div><Label>公积金基数上限</Label><Input type="number" value={newVersion.housingBaseMax} onChange={(e) => setNewVersion({ ...newVersion, housingBaseMax: Number(e.target.value) })} placeholder="0=用社保上限" /><p className="text-xs text-gray-400 mt-1">0 时使用缴费基数上限</p></div>
                     </div>
                   </>
                 ) : (