Initial commit: cc-cursor 全链路量化研究平台

7 Sprints 全部完成:
  Sprint 0: 基础设施 (DataManager + MariaDB)
  Sprint 1: 因子引擎 (34因子/12分类)
  Sprint 2: VectorBT 回测 (5策略+截面)
  Sprint 3: Optuna 优化 (+Walk-Forward)
  Sprint 4: ML 模型 (LightGBM+CatBoost)
  Sprint 5: Qwen 情绪因子 (三源新闻+日期对齐)
  Sprint 6: Agent 系统 (4Agent+日报.md/.html)

生产加固 (15项): Tushare双源fallback, SSH自动恢复, pool_pre_ping,
  save_daily先删后插, load_dotenv绝对路径, 日报5d/20d修复,
  RiskAgent改上证指数, 昨日对比+数据截止, mac_report utf8mb4,
  CLAUDE-*.md 9条已知Bug, demo全参数化, djapi数据源归一化,
  indexDatas API修正

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

djapi/static/admin/js/unusable_password_field.js

@@ -0,0 +1,29 @@
+"use strict";
+// Fallback JS for browsers which do not support :has selector used in
+// admin/css/unusable_password_fields.css
+// Remove file once all supported browsers support :has selector
+try {
+    // If browser does not support :has selector this will raise an error
+    document.querySelector("form:has(input)");
+} catch (error) {
+    console.log("Defaulting to javascript for usable password form management: " + error);
+    // JS replacement for unsupported :has selector
+    document.querySelectorAll('input[name="usable_password"]').forEach(option => {
+        option.addEventListener('change', function() {
+            const usablePassword = (this.value === "true" ? this.checked : !this.checked);
+            const submit1 = document.querySelector('input[type="submit"].set-password');
+            const submit2 = document.querySelector('input[type="submit"].unset-password');
+            const messages = document.querySelector('#id_unusable_warning');
+            document.getElementById('id_password1').closest('.form-row').hidden = !usablePassword;
+            document.getElementById('id_password2').closest('.form-row').hidden = !usablePassword;
+            if (messages) {
+                messages.hidden = usablePassword;
+            }
+            if (submit1 && submit2) {
+                submit1.hidden = !usablePassword;
+                submit2.hidden = usablePassword;
+            }
+        });
+        option.dispatchEvent(new Event('change'));
+    });
+}