refactor(src): split oversized modules

src/config/config.pruning-defaults.test.ts

@@ -0,0 +1,46 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+import { describe, expect, it, vi } from "vitest";
+import { withTempHome } from "./test-helpers.js";
+
+describe("config pruning defaults", () => {
+  it("defaults contextPruning mode to adaptive", async () => {
+    await withTempHome(async (home) => {
+      const configDir = path.join(home, ".clawdbot");
+      await fs.mkdir(configDir, { recursive: true });
+      await fs.writeFile(
+        path.join(configDir, "clawdbot.json"),
+        JSON.stringify({ agents: { defaults: {} } }, null, 2),
+        "utf-8",
+      );
+
+      vi.resetModules();
+      const { loadConfig } = await import("./config.js");
+      const cfg = loadConfig();
+
+      expect(cfg.agents?.defaults?.contextPruning?.mode).toBe("adaptive");
+    });
+  });
+
+  it("does not override explicit contextPruning mode", async () => {
+    await withTempHome(async (home) => {
+      const configDir = path.join(home, ".clawdbot");
+      await fs.mkdir(configDir, { recursive: true });
+      await fs.writeFile(
+        path.join(configDir, "clawdbot.json"),
+        JSON.stringify(
+          { agents: { defaults: { contextPruning: { mode: "off" } } } },
+          null,
+          2,
+        ),
+        "utf-8",
+      );
+
+      vi.resetModules();
+      const { loadConfig } = await import("./config.js");
+      const cfg = loadConfig();
+
+      expect(cfg.agents?.defaults?.contextPruning?.mode).toBe("off");
+    });
+  });
+});