Feat: Core search loop with rolling window

Co-authored-by: Opus 4.6 <noreply@anthropic.com>

pink.js

@@ -0,0 +1,46 @@
+import { readdir, readFile, writeFile } from "fs/promises"
+import { SEARCH_MODEL, JSON_ROLLING_WINDOW } from "./config.js"
+
+const DIR = "?"
+const files = (await readdir(DIR)).filter(f => f.endsWith(".json"))
+
+for (const file of files) {
+  const query = file.replace(/\.json$/, "")
+  const path = `${DIR}/${file}`
+  const now = new Date().toISOString().replace("T", " ").slice(0, 16) + " UTC"
+
+  console.log(`>> ${query}`)
+
+  const res = await fetch("https://openrouter.ai/api/v1/chat/completions", {
+    method: "POST",
+    headers: {
+      "Authorization": `Bearer ${process.env.OPENROUTER_KEY}`,
+      "Content-Type": "application/json"
+    },
+    body: JSON.stringify({
+      model: SEARCH_MODEL,
+      messages: [{ role: "user", content: query }]
+    })
+  })
+
+  if (!res.ok) {
+    console.error(`!! ${file}: ${res.status} ${await res.text()}`)
+    continue
+  }
+
+  const data = await res.json()
+  const answer = data.choices?.[0]?.message?.content ?? "No response."
+
+  let entries = []
+  try {
+    const raw = await readFile(path, "utf-8")
+    const parsed = JSON.parse(raw || "[]")
+    if (Array.isArray(parsed)) entries = parsed
+  } catch {}
+
+  entries.unshift({ date: now, response: answer })
+  entries = entries.slice(0, JSON_ROLLING_WINDOW)
+
+  await writeFile(path, JSON.stringify(entries, null, 2) + "\n")
+  console.log(`<< ${file} (${entries.length} entries)`)
+}