feat: awesome index 全功能实现

- M1-M2: 数据层与核心API（DuckDB, entries/tags/comments/search服务）
- M3: SSR页面（EJS模板，接真实数据）
- M4: 管理后台（登录/用户/内容源/AI ingest）
- M5: 采集层（scheduler+rss/html/eryajf适配器）
- M6: MCP只读接口（Streamable HTTP, 4工具）
- M7: Docker部署（Dockerfile+docker-compose）
- 测试: 10个用例全部通过
- 修复: DuckDB连接参数绑定、状态机迁移、标签树操作

public/js/main.js

@@ -0,0 +1,169 @@
+(function () {
+  "use strict";
+
+  var toastEl = document.querySelector(".toast");
+  var toastTimer = null;
+  function toast(msg) {
+    if (!toastEl) return;
+    toastEl.textContent = msg;
+    toastEl.classList.add("show");
+    clearTimeout(toastTimer);
+    toastTimer = setTimeout(function () {
+      toastEl.classList.remove("show");
+    }, 2200);
+  }
+  window.awToast = toast;
+
+  async function postJson(url, body, method) {
+    var res = await fetch(url, {
+      method: method || "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify(body || {}),
+    });
+    var json = null;
+    try {
+      json = await res.json();
+    } catch (e) {}
+    if (!res.ok || (json && json.ok === false)) {
+      throw new Error((json && json.error && json.error.message) || "请求失败（" + res.status + "）");
+    }
+    return json;
+  }
+  window.awApi = postJson;
+
+  document.querySelectorAll("[data-copy]").forEach(function (btn) {
+    btn.addEventListener("click", function () {
+      var text = btn.getAttribute("data-copy");
+      if (navigator.clipboard && navigator.clipboard.writeText) {
+        navigator.clipboard.writeText(text).then(
+          function () { toast("已复制"); },
+          function () { toast("复制失败，请手动选择文本"); }
+        );
+      } else {
+        toast("当前环境不支持自动复制");
+      }
+    });
+  });
+
+  var searchInput = document.getElementById("q");
+  var echo = document.getElementById("query-echo");
+  if (searchInput && echo) {
+    var paint = function () {
+      var q = searchInput.value.trim();
+      echo.textContent = q
+        ? '→ mcp: search_entries({ "q": "' + q + '", "limit": 20 })'
+        : '→ mcp: search_entries({ "q": "…" })';
+    };
+    searchInput.addEventListener("input", paint);
+    paint();
+  }
+
+  var searchForm = document.getElementById("search-form");
+  if (searchForm) {
+    searchForm.addEventListener("submit", function (e) {
+      e.preventDefault();
+      var q = searchForm.querySelector("#q") ? searchForm.querySelector("#q").value.trim() : "";
+      location.href = "/entries" + (q ? "?q=" + encodeURIComponent(q) : "");
+    });
+  }
+
+  var randomBtn = document.getElementById("random-btn");
+  if (randomBtn) {
+    randomBtn.addEventListener("click", function () {
+      location.href = "/random";
+    });
+  }
+
+  var navToggle = document.querySelector(".nav-toggle");
+  if (navToggle) {
+    navToggle.addEventListener("click", function () {
+      var bar = document.querySelector(".topbar");
+      var open = bar.classList.toggle("menu-open");
+      navToggle.setAttribute("aria-expanded", open ? "true" : "false");
+    });
+  }
+
+  var railToggle = document.getElementById("rail-toggle");
+  if (railToggle) {
+    railToggle.addEventListener("click", function () {
+      document.getElementById("filter-rail").classList.toggle("open");
+    });
+  }
+
+  document.querySelectorAll(".tree-row[data-tree]").forEach(function (row) {
+    row.addEventListener("click", function () {
+      var target = document.getElementById(row.getAttribute("data-tree"));
+      if (!target) return;
+      var open = target.classList.toggle("open");
+      row.setAttribute("aria-expanded", open ? "true" : "false");
+    });
+  });
+
+  document.querySelectorAll(".view-tabs button[data-view]").forEach(function (tab) {
+    tab.addEventListener("click", function () {
+      document
+        .querySelectorAll(".view-tabs button[data-view]")
+        .forEach(function (t) { t.setAttribute("aria-selected", "false"); });
+      tab.setAttribute("aria-selected", "true");
+      var view = tab.getAttribute("data-view");
+      document.querySelectorAll("[data-view-panel]").forEach(function (p) {
+        p.hidden = p.getAttribute("data-view-panel") !== view;
+      });
+    });
+  });
+
+  document.querySelectorAll(".filter-auto input[type=checkbox], .filter-auto select").forEach(function (el) {
+    el.addEventListener("change", function () {
+      el.form && el.form.submit();
+    });
+  });
+
+  var loginForm = document.getElementById("login-form");
+  if (loginForm) {
+    loginForm.addEventListener("submit", function (e) {
+      e.preventDefault();
+      if (!loginForm.reportValidity()) return;
+      postJson("/api/admin/login", {
+        username: loginForm.username.value,
+        password: loginForm.password.value,
+      })
+        .then(function () {
+          toast("登录成功，正在进入管理台…");
+          setTimeout(function () { location.href = "/admin"; }, 400);
+        })
+        .catch(function (err) { toast(err.message); });
+    });
+  }
+
+  var commentForm = document.querySelector(".comment-form[data-entry-id]");
+  if (commentForm) {
+    commentForm.addEventListener("submit", function (e) {
+      e.preventDefault();
+      if (!commentForm.reportValidity()) return;
+      postJson("/api/comments", {
+        entryId: Number(commentForm.getAttribute("data-entry-id")),
+        authorName: commentForm.querySelector("[name=authorName]").value,
+        body: commentForm.querySelector("[name=body]").value,
+      })
+        .then(function () {
+          toast("评论已发布");
+          setTimeout(function () { location.reload(); }, 500);
+        })
+        .catch(function (err) { toast(err.message); });
+    });
+  }
+
+  var feedbackForm = document.querySelector(".feedback[data-feedback]");
+  if (feedbackForm) {
+    feedbackForm.addEventListener("submit", function (e) {
+      e.preventDefault();
+      if (!feedbackForm.reportValidity()) return;
+      postJson("/api/feedback", { body: feedbackForm.querySelector("textarea").value })
+        .then(function () {
+          toast("已收到，感谢反馈");
+          feedbackForm.reset();
+        })
+        .catch(function (err) { toast(err.message); });
+    });
+  }
+})();