chore(vendor): import pi 1.3.0

Imported as a linear vendor commit so forge rebases do not replay the upstream root tree.

git-subtree-dir: third_party/pi

git-subtree-split: 71023aec1546d6d677a65669c5665c0927ce0dd0

third_party/pi/scripts/issues/source-hooks.mjs

@@ -0,0 +1,30 @@
+// Resolve workspace packages to their TypeScript sources, so the triage tool runs without building packages.
+// A package without a "source" export condition (pi-ai) resolves to dist/*.js; this maps it to src/*.ts.
+import { existsSync, realpathSync } from "node:fs";
+import { fileURLToPath, pathToFileURL } from "node:url";
+
+const DIST_JS = /(\/(?:packages|node_modules\/@earendil-works)\/[^/]+)\/dist\/(.+)\.js$/;
+
+function toSource(url) {
+	if (!url?.startsWith("file:")) return undefined;
+	const path = fileURLToPath(url);
+	if (path.includes("/node_modules/") && !path.includes("/node_modules/@earendil-works/")) return undefined;
+	if (!DIST_JS.test(path)) return undefined;
+	const source = path.replace(DIST_JS, "$1/src/$2.ts");
+	if (!existsSync(source)) return undefined;
+	// Real path: Node refuses to strip types under node_modules.
+	return pathToFileURL(realpathSync(source)).href;
+}
+
+export async function resolve(specifier, context, nextResolve) {
+	let result;
+	try {
+		result = await nextResolve(specifier, context);
+	} catch (error) {
+		const source = toSource(error?.url);
+		if (source) return { url: source, format: "module-typescript", shortCircuit: true };
+		throw error;
+	}
+	const source = toSource(result.url);
+	return source ? { url: source, format: "module-typescript", shortCircuit: true } : result;
+}