Implement three divination modes, learn pages, and PM2 deploy on port 3130.

Add liuyao/bazi/combined flows with shared calc and AI infrastructure, 64-gua learn routes, and update Ubuntu PM2 deployment docs for port 3130.

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

app/actions/bazi.ts

@@ -0,0 +1,30 @@
+"use server";
+
+import { streamAIResponse } from "@/lib/ai/stream";
+import {
+  calculateBazi,
+  formatBaziForPrompt,
+  type BaziInput,
+} from "@/lib/calc/bazi";
+import { BAZI_SYSTEM_PROMPT } from "@/lib/prompts";
+
+export async function getBaziAnswer(
+  input: BaziInput,
+  question: string,
+  birthPlaceName: string,
+) {
+  const chart = calculateBazi(input);
+  const chartText = formatBaziForPrompt(chart);
+
+  return streamAIResponse(
+    BAZI_SYSTEM_PROMPT,
+    `【出生时空】
+出生地：${birthPlaceName}
+
+【排盘信息】
+${chartText}
+
+【问事】
+${question}`,
+  );
+}

app/actions/combined.ts

@@ -0,0 +1,84 @@
+"use server";
+
+import { streamAIResponse } from "@/lib/ai/stream";
+import {
+  calculateBazi,
+  formatBaziForPrompt,
+  type BaziInput,
+} from "@/lib/calc/bazi";
+import {
+  formatTimingForPrompt,
+  getTimingInfoWithLongitude,
+} from "@/lib/calc/timing";
+import { COMBINED_SYSTEM_PROMPT } from "@/lib/prompts";
+import {
+  extractChangeDetails,
+  extractZhangMingRen,
+  readGuaMarkdown,
+} from "@/lib/content/zhouyi";
+
+export interface CombinedInput {
+  birth: BaziInput;
+  birthPlaceName: string;
+  currentPlaceName: string;
+  currentLongitude: number;
+  calcDate: string;
+  calcTime: string;
+  question: string;
+  hexagram?: {
+    guaMark: string;
+    guaTitle: string;
+    guaResult: string;
+    guaChange: string;
+  };
+}
+
+export async function getCombinedAnswer(input: CombinedInput) {
+  const chart = calculateBazi(input.birth);
+  const chartText = formatBaziForPrompt(chart);
+  const { timing, trueSolarTime } = getTimingInfoWithLongitude(
+    input.calcDate,
+    input.calcTime,
+    input.currentLongitude,
+  );
+  const timingText = [
+    formatTimingForPrompt(timing, input.currentPlaceName, input.currentLongitude),
+    `真太阳时：${trueSolarTime}`,
+  ].join("\n");
+
+  let hexagramText = "";
+  if (input.hexagram) {
+    const { guaMark, guaTitle, guaResult, guaChange } = input.hexagram;
+    try {
+      const guaDetail = await readGuaMarkdown(guaMark);
+      const explain = extractZhangMingRen(guaDetail) ?? "";
+      const changeList = extractChangeDetails(guaDetail, guaChange, guaTitle);
+      hexagramText = [
+        "",
+        "【卦象 · 可选六爻】",
+        `${guaTitle} ${guaResult} ${guaChange}`,
+        explain,
+        changeList.join("\n"),
+      ].join("\n");
+    } catch {
+      hexagramText = [
+        "",
+        "【卦象 · 可选六爻】",
+        `${input.hexagram.guaTitle} ${input.hexagram.guaResult} ${input.hexagram.guaChange}`,
+      ].join("\n");
+    }
+  }
+
+  return streamAIResponse(
+    COMBINED_SYSTEM_PROMPT,
+    `【人和 · 八字排盘】
+出生地：${input.birthPlaceName}
+${chartText}
+
+${timingText}
+${hexagramText}
+
+【问事】
+${input.question}`,
+  );
+}

app/actions/liuyao.ts

@@ -0,0 +1,66 @@
+"use server";
+
+import { streamAIResponse } from "@/lib/ai/stream";
+import {
+  formatLiuyaoTimingForPrompt,
+  getTimingInfoWithLongitude,
+} from "@/lib/calc/timing";
+import {
+  extractChangeDetails,
+  extractZhangMingRen,
+  readGuaMarkdown,
+} from "@/lib/content/zhouyi";
+import { LIUYAO_SYSTEM_PROMPT } from "@/lib/prompts";
+
+export interface LiuyaoInput {
+  question: string;
+  calcDate: string;
+  calcTime: string;
+  locationName: string;
+  longitude: number;
+  guaMark: string;
+  guaTitle: string;
+  guaResult: string;
+  guaChange: string;
+}
+
+export async function getLiuyaoAnswer(input: LiuyaoInput) {
+  const { timing, trueSolarTime } = getTimingInfoWithLongitude(
+    input.calcDate,
+    input.calcTime,
+    input.longitude,
+  );
+  const timingText = formatLiuyaoTimingForPrompt(
+    timing,
+    trueSolarTime,
+    input.locationName,
+    input.longitude,
+  );
+
+  let guaDetailText = "";
+  try {
+    const guaDetail = await readGuaMarkdown(input.guaMark);
+    const explain = extractZhangMingRen(guaDetail) ?? "";
+    const changeList = extractChangeDetails(
+      guaDetail,
+      input.guaChange,
+      input.guaTitle,
+    );
+    guaDetailText = [explain, changeList.join("\n")].filter(Boolean).join("\n");
+  } catch {
+    guaDetailText = "";
+  }
+
+  return streamAIResponse(
+    LIUYAO_SYSTEM_PROMPT,
+    `${timingText}
+
+【卦象】
+${input.guaTitle} ${input.guaResult} ${input.guaChange}
+
+【问事】
+${input.question}
+
+${guaDetailText}`,
+  );
+}