Rename Foundry handoffs to tasks (#239)

* Restore foundry onboarding stack

* Consolidate foundry rename

* Create foundry tasks without prompts

* Rename Foundry handoffs to tasks

foundry/packages/cli/tsup.config.ts

@@ -0,0 +1,53 @@
+import { execSync } from "node:child_process";
+import { readFileSync } from "node:fs";
+import { resolve } from "node:path";
+import { defineConfig } from "tsup";
+
+function packageVersion(): string {
+  try {
+    const packageJsonPath = resolve(process.cwd(), "package.json");
+    const parsed = JSON.parse(readFileSync(packageJsonPath, "utf8")) as { version?: unknown };
+    if (typeof parsed.version === "string" && parsed.version.trim()) {
+      return parsed.version.trim();
+    }
+  } catch {
+    // Fall through.
+  }
+  return "dev";
+}
+
+function sourceId(): string {
+  try {
+    const raw = execSync("git rev-parse --short HEAD", {
+      encoding: "utf8",
+      stdio: ["ignore", "pipe", "ignore"],
+    }).trim();
+    if (raw.length > 0) {
+      return raw;
+    }
+  } catch {
+    // Fall through.
+  }
+  return packageVersion();
+}
+
+function resolveBuildId(): string {
+  const override = process.env.HF_BUILD_ID?.trim();
+  if (override) {
+    return override;
+  }
+
+  // Match sandbox-agent semantics: source id + unique build timestamp.
+  return `${sourceId()}-${Date.now().toString()}`;
+}
+
+const buildId = resolveBuildId();
+
+export default defineConfig({
+  entry: ["src/index.ts"],
+  format: ["esm"],
+  dts: true,
+  define: {
+    __HF_BUILD_ID__: JSON.stringify(buildId),
+  },
+});