fix(zip): use zipinfo to preflight zip extraction on unix

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/shared/zip-entry-listing/zipinfo-zip-entry-listing.ts

@@ -0,0 +1,72 @@
+import { spawn, spawnSync } from "bun"
+
+import type { ArchiveEntry } from "../archive-entry-validator"
+import { readZipSymlinkTarget } from "./read-zip-symlink-target"
+
+export function parseZipInfoListedEntry(line: string): ArchiveEntry | null {
+	const match = line.match(
+		/^([dl-])\S*\s+\S+\s+\S+\s+\d+\s+\S+\s+\d+\s+\S+\s+\S+\s+\S+\s+(.*)$/
+	)
+	if (!match) {
+		return null
+	}
+
+	const [, rawType, rawEntryPath] = match
+	return {
+		path: rawEntryPath,
+		type: rawType === "d" ? "directory" : rawType === "l" ? "symlink" : "file",
+	}
+}
+
+export function isZipInfoZipListingAvailable(): boolean {
+	const proc = spawnSync(["which", "zipinfo"], {
+		stdout: "ignore",
+		stderr: "ignore",
+	})
+
+	return proc.exitCode === 0
+}
+
+function splitZipInfoOutputLines(stdout: string): string[] {
+	return stdout.split(/\r?\n/).filter(line => line.length > 0)
+}
+
+export async function listZipEntriesWithZipInfo(
+	archivePath: string
+): Promise<ArchiveEntry[]> {
+	if (!isZipInfoZipListingAvailable()) {
+		throw new Error("zip entry listing requires zipinfo, but zipinfo is not installed")
+	}
+
+	const proc = spawn(["zipinfo", "-l", archivePath], {
+		stdout: "pipe",
+		stderr: "pipe",
+	})
+
+	const [exitCode, stdout, stderr] = await Promise.all([
+		proc.exited,
+		new Response(proc.stdout).text(),
+		new Response(proc.stderr).text(),
+	])
+
+	if (exitCode !== 0) {
+		throw new Error(`zip entry listing failed (exit ${exitCode}): ${stderr}`)
+	}
+
+	const parsedEntries = splitZipInfoOutputLines(stdout)
+		.map(line => parseZipInfoListedEntry(line))
+		.filter((entry): entry is ArchiveEntry => entry !== null)
+
+	return Promise.all(
+		parsedEntries.map(async entry => {
+			if (entry.type !== "symlink") {
+				return entry
+			}
+
+			return {
+				...entry,
+				linkPath: await readZipSymlinkTarget(archivePath, entry.path),
+			}
+		})
+	)
+}